We can rent a canoe for x cents per minute for the first 30 minutes and then y cents for each ...

We can rent a canoe for x cents per minute for the first 30 minutes and then y cents for each additional minute. How much will it cost to rent a canoe for z minutes, where z>30?

Quiz

Answer/Solution

30x+(z-30)y

Steps/Work

The first 30 minutes cost 30x.
The next (z-30) minutes cost (z-30)y.
The total cost is 30x+(z-30)y.
The answer is C.