The cost to rent skis at a local sporting goods store is 15 dollars plus 20 dollars per day. Which equation models the relationship between the total cost to rent, c , and the length of the rental in days, d ?
Answer
A
c is equal to open paren 15 plus d close paren times 20
B
c is equal to open paren 15 plus 20 close paren times d
C
c is equal to 15 d plus 20
D
c is equal to 20 d plus 15
Explanation
The rental costs $15 as a fixed fee, plus $20 for each day. For d days, the daily charge is 20d, so the total cost is c = 20d + 15. Choice D, “c is equal to 20 d plus 15,” matches this relationship.
AI-written and checked against the verified answer.