Question

How do you translate "the cost of P photocopies if each one costs $.15" into an algebraic expression?

Answer 1

`C=0.15*p`

Explanation:

Indicating the cost as `C` you get:
`C=0.15*p`
.
.
.
.
.
.
.
.
.
If you want (but it is not part of your question) you can include the fixed costs (toner, electricity, maintenance, etc.) by introducing a constant that takes into account these expenses, indicated as `b`. so you get:
`C=0.15*p+b`