Solve the problem.Regrind, Inc. regrinds used typewriter platens. The cost per platen is The cost to regrind 100 platens is Find the linear cost function to regrind platens. If reground platens sell for each, how many must be reground and sold to break even?

A. C(x) = 1.20x + 280
break-even = 37
B. C(x) = 1.20x + 400
break-even = 41
C. C(x) = 1.20x + 280
break-even = 288
D. C(x) = 1.20x + 400
break-even = 54

Answer: A

Mathematics

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