The division of Chapman Corporation produces the pager. Weekly fixed cost for division is $15,000, and variable cost for producing x pagers/week in dollars is represented by function V(x). V(x)= 0.000001x^3-0.01x^2+50x. Company realizes the revenue in dollars from sale of x pagers/week represented by function R(x). R(x)= -0.02x^2+150x (0