Solve the problem.Regrind, Inc. regrinds used typewriter platens. The variable cost per platen is $1.60. The total cost to regrind 100 platens is $400. Find the linear cost function to regrind platens. If reground platens sell for $10.10 each, how many must be reground and sold to break even?
A. C(x) = 1.60x + 400; 47 platens
B. C(x) = 1.60x + 240; 21 platens
C. C(x) = 1.60x + 400; 35 platens
D. C(x) = 1.60x + 240; 29 platens
Answer: D
Mathematics
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A. 6
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