Answer:
$-12.99
Explanation:
Lisa bought five CDs from the store at a same price.
After purchasing CDs her account balance showed a deduction of 64.95 = $-64.95
This means the price of 5 CDs = $64.95
The price of one CD =

= $12.99
If she only bought one CD from the store the change to Lisa's account balance showed $-12.99