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OpenStudy (anonymous):
Solve. Show all your work and explain your steps. You are buying gifts for 10 people. You decide either to buy either a CD or a 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? b) What is an expression in terms of c for the cost of the CDs? For the cost of the DVDs? c) Write and simplify an expression in terms of c for the total cost of all the gifts you buy. What properties of real numbers did you use to simplify the expression?
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OpenStudy (anonymous):
Dont get this confuses me
OpenStudy (anonymous):
no help? :/
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