A large drug company must determine how many sales representatives to assign to each of four sales districts, the cost of having n representatives is ($80,000 + $88,000n) per year. if a rep is based in a given district the time it takes to complete a call on a doctor is given in table (times are in hours)

Each sales rep can work up to 160 hours per month. each month the number of calls given in table must be made in each district
District................................number of calls
1.......................................................50
2.......................................................80
3......................................................100
4.......................................................60
A fraction number of representative in a district is not permissible. Determine how many representatives should be assigned in a district.

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