NEED ASSISTANCE PLEASE!!!

You are buying gifts for 10 people. You decide to buy each person either a CD or DVD. A CD costs $12 and a DVD costs $20.
a. Let c = the number of CDs you decide to buy. What is an expression in terms of c for the number of DVDs you buy?

Question

NEED ASSISTANCE PLEASE!!!

You are buying gifts for 10 people. You decide to buy each person either a CD or DVD. A CD costs $12 and a DVD costs $20. 
a. Let c = the number of CDs you decide to buy. What is an expression in terms of c for the number of DVDs you buy?

austinl · Answer

This is kinda like a system of equations problem.
You have ten people, that you are going to get either one gift or the other for. That is an equation.
Can you think of what the equation would be?

anonymous · Answer

First make the sentence into an equation.