Solve the problem.Regrind, Inc. regrinds used typewriter platens. The cost per platen is 
The cost to regrind 110 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) = 1.60x + 400
break-even = 41
B. C(x) = 1.60x + 224
break-even = 33
C. C(x) = 1.60x + 224
break-even = 230
D. C(x) = 1.60x + 400
break-even = 60
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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A. 
B. 
C. 
D. 
E. 
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A. Minimum: -100 at 
and 
B. Minimum: 100 at 
and 
C. Minimum: 0 at 
D. Minimum: 100 at 
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