AlgebraEasy–MediumTotal from a base and a rate
Algebra practice question
A gym charges a $30 joining fee plus $4 per visit. What is the total cost, in dollars, for a member who visits 15 times?
Answer: 90
30 + 4 × 15 = 30 + 60 = 90.
Common wrong answers
- If you answered 34
- 34 adds one visit to the fee.
- If you answered 60
- 60 is the visit charge alone.
- If you answered 510
- 510 multiplies (30 + 4) by 15.
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