The cost C (in dollars) for a company to produce and sell x thousand gadgets is given by C = 1/40 x^2 − 2x + 4040



(a) What is the company's start-up cost? $________


(b) What is the minimum cost? $ ___________


(c) How many gadgets must the company produce and sell in order to incur the least cost? (Be careful with your units!) __________ gadgets