Question

Joanna joins a CD club. She pays $7 per month plus $10 for each CD that she orders. Write an inequality to find how many CDs she can purchase in a month if she spends no more than $100. Identify what your variable represents.

Answer 1

amount that she may spend in month= x
formula of money that joanna use in cd club in month = 7+10y
if x=100 then
`7+10y \leq 100`

Answer 2

She can buy 9 CDs with 100