12. A wholesale warehouse buys pairs of sandals to sell. a. The warehouse can purchase 5 pairs of sandals for $65. What is the cost rate?

b. The warehouse can purchase 8 pairs of sandals for $96. What is the cost rate?

C. The warehouse can purchase 10 pairs of sandals for $126.50 and will get one
free pair. What is the cost rate?

d. Are any of the cost rates proportional? Explain.

e. Your buyer is to purchase 40 pairs of sandals. Use any combination of parts

(a), (b), and (c) for your buyer to purchase the 40 pairs of sandals at the
lowest possible cost.

You can just pick one you don’t have to do them all