Answer
The cost of CDs is $12c$.
The cost of DVDs is $200-20c$
Work Step by Step
The cost of CDs is \$12 per CD.
cost of CDs=$12c$
The cost of DVDs is \$20 per DVD.
cost of DVDs=$20(10-c)=200-20c$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 1 - Foundations for Algebra - Pull it All Together - Page 67: Task 3B
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