27. A company's revenue earned from selling x items is given by the function Rxx The company's cost to sell these items is given by the function C(x)-2230+2.1x2 a) Determine a function, P(x), that represents the company's profit from selling r items. Show all your work and simplify your answer. b) Determine P(O). Write your answer as an ordered pair and interpret its meaning ina complete sentence. c) Determine P(250). Write your answer as an ordered pair and interpret its meaning in a complete sentence