Question 1147407
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(a)  C(x) = 1000 + 250*x    dollars.


     R(x) = 500x            dollars.


     P(x) = R(x) - C(x) = 500x - (1000 + 250x) = 250x - 1000  dollars.



(b)  To answer (b), solve the equation


         P(x) = 12000  dollars,   which is the same as


         250x - 1000 = 12000.



     The solution in steps is


        250x = 12000 + 1000 = 13000

           x                = {{{13000/250}}} = 52 computers.   <U>ANSWER</U>
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Solved:  I answered all the questions.