A small company can produce up to 200 handmade sandals a month. The monthly cost, C, of producing x sandals is C(x) = 1000 + 5x.
The monthly revenue, R, is given by R(x) = 75x - 0.4x2

Round your answer to the nearest integer.
At what production levels will the company lose money?
a. between 0 and 10 or between 150 and 190 pairs, inclusive
c. between 10 and 20 or between 50 and 100, inclusive
b. between 0 and 15 or between 160 and 200 pairs, inclusive
d. between 15 and 35 or between 75 and 125, inclusive

Question

A small company can produce up to 200 handmade sandals a month.  The monthly cost, C, of producing x sandals is C(x) = 1000 + 5x. 
The monthly revenue, R, is given by R(x) = 75x - 0.4x2

Round your answer to the nearest integer.
At what production levels will the company lose money?
a. between 0 and 10 or between 150 and 190 pairs, inclusive 
c. between 10 and 20 or between 50 and 100, inclusive 
b. between 0 and 15 or between 160 and 200 pairs, inclusive 
d. between 15 and 35 or between 75 and 125, inclusive