The planning department of abstract office supplies has been asked to determine whether the company should introduce a new computer desk next year. the department estimates that $6000 of new manufacturing equipment will need to be purchased and that the cost of constructing each desk will be $200. the department also estimates that the revenue from each desk will be $450.a. determine the revenue function r(x) from the sale of x desksb. determine the cost function c(x) for manufacturing x desksc. find the break even point