A restaurant bill is \($45\). Marcus leaves an \(18\%\) tip. How much is the tip?
- A \($6.75\)
- B \($14.40\)
- C \($10.80\)
- D \($8.10\)
Check answer and explanation
Answer D: \($8.10\)
Tip amount \(= 0.18 \times 45 = $8.10\).
CH02-05 lesson
Tips, Commissions, and Fees Learning Activity
A focused Grade 7 learning session for Tips, Commissions, and Fees using visual models, worked examples, strategy guidance, and a short mastery check.
- 15
- minutes
- 6
- lesson parts
- 11
- practice items
Students will build Grade 7 mastery of tips, commissions, and fees using models, equations, and test-style reasoning.
Student goal: I can solve problems involving tips, commissions, and fees.
Helpful first:
Markups, Discounts, and Sales Tax
Learn the Idea
Tips, Commissions, and Fees is part of Grade 7 Percents and Financial Literacy. This activity focuses on the central idea students need before they move into independent practice.
Students will build Grade 7 mastery of tips, commissions, and fees using models, equations, and test-style reasoning.
See the Math
| What to notice | How to use it |
|---|---|
| Numbers, units, labels, diagrams, or graphs | Identify what each part represents before calculating. |
| The relationship in the problem | Connect the model to an equation, comparison, or explanation. |
Use the figures and worked questions in the practice set below as the visual model for this skill.
Follow a Worked Example
Read the first practice question slowly. Decide what the question is asking, choose a strategy, solve, and then compare your reasoning with the answer explanation.
For Tips, Commissions, and Fees, a strong worked example should show the setup, the calculation or model, and a final answer that matches the context.
Connect It to a Real Situation
Many Grade 7 test questions use real situations. Look for quantities, units, rates, measures, expressions, or data values that connect the math to the story.
After solving, explain what the answer means in the situation, not just the number you calculated.
Avoid Mistakes and Choose a Strategy
- Underline the exact question before solving.
- Label units, variables, or graph axes when they appear.
- Estimate first so unreasonable answers are easier to catch.
- Review missed questions and write the reason for each mistake.
Remember the Key Idea
I can solve problems involving tips, commissions, and fees.
Use the warmup, guided question, practice set, and exit questions below to check whether this skill is ready or needs more practice.
Solve before opening the answer
Use scratch paper. The explanation matters more than simply seeing whether the choice is correct.
warmup
2 questionsA waiter receives a \($12\) tip on a \($60\) bill. What percentage tip did the customer leave?
- A \(15\%\)
- B \(18\%\)
- C \(20\%\)
- D \(25\%\)
Check answer and explanation
Answer C: \(20\%\)
Tip percentage \(= \frac{12}{60} = 0.20 = 20\%\).
guided
1 questionA sales associate earned \($150\) in commission on \($2,500\) worth of sales. What is the commission rate?
- A \(4\%\)
- B \(5\%\)
- C \(6\%\)
- D \(8\%\)
Check answer and explanation
Answer C: \(6\%\)
Commission rate \(= \frac{150}{2500} = 0.06 = 6\%\).
practice
5 questionsA restaurant charges a \(2.5\%\) service fee in addition to the bill. If a diner's meal costs \($80\), what is the service fee?
- A \($20.00\)
- B \($2.50\)
- C \($8.00\)
- D \($2.00\)
Check answer and explanation
Answer D: \($2.00\)
Service fee \(= 0.025 \times 80 = $2.00\).
An online store deducts a \(3\%\) processing fee from seller payments. If a seller receives payment for items totaling \($1,000\), how much is deducted as a fee?
- A \($15\)
- B \($25\)
- C \($30\)
- D \($100\)
Check answer and explanation
Answer C: \($30\)
Processing fee \(= 0.03 \times 1000 = $30\).
A car salesman earns \($1,000\) commission on a \($25,000\) vehicle sale. What is his commission rate?
- A \(2\%\)
- B \(3\%\)
- C \(4\%\)
- D \(5\%\)
Check answer and explanation
Answer C: \(4\%\)
Commission rate \(= \frac{1000}{25000} = 0.04 = 4\%\).
A pizza delivery service adds a \($2.50\) delivery fee to orders under \($25\) and a \($4.00\) fee to orders \($25\) or more. What is the total cost of a \($32\) order with the delivery fee?
- A \($32.00\)
- B \($34.50\)
- C \($36.00\)
- D \($36.40\)
Check answer and explanation
Answer C: \($36.00\)
Order is \($32 \geq $25\), so delivery fee is \($4.00\). Total \(= 32 + 4 = $36.00\).
A freelance designer charges clients a \(15\%\) design fee on top of materials costs. If materials cost \($200\), what is the total cost to the client?
- A \($215\)
- B \($260\)
- C \($245\)
- D \($230\)
Check answer and explanation
Answer D: \($230\)
Design fee \(= 0.15 \times 200 = $30\). Total \(= 200 + 30 = $230\).
exit
3 questionsA bank charges a \(3\%\) fee on ATM withdrawals outside its network. If a customer withdraws \($300\) from an out-of-network ATM, what is the ATM fee?
- A \($6.00\)
- B \($15.00\)
- C \($12.00\)
- D \($9.00\)
Check answer and explanation
Answer D: \($9.00\)
ATM fee \(= 0.03 \times 300 = $9.00\).
A real estate agent earns a \(2.5\%\) commission on home sales. She sells a house for \($400,000\). How much is her commission?
- A \($6,000\)
- B \($40,000\)
- C \($12,500\)
- D \($10,000\)
Check answer and explanation
Answer D: \($10,000\)
Commission \(=\) commission rate \(\times\) sales \(= 0.025 \times 400000 = $10,000\).
A barber charges \($25\) per haircut and performs \(8\) haircuts in a day. If the barber earns a \(40\%\) commission on all haircut fees, what is the total commission for the day?
- A \($40\)
- B \($200\)
- C \($100\)
- D \($80\)
Check answer and explanation
Answer D: \($80\)
Total haircut revenue \(= 25 \times 8 = $200\). Commission \(=\) commission rate \(\times\) sales \(= 0.40 \times 200 = $80\).
