The cost to produce x items is given by C (x)=4x+1 10 x (a) Find the marginal cost when x = 10. $ (b) Find the average cost when x = 10. $ (c) Find the marginal average cost when x = 10. $ (d) Find the marginal revenue when x = 10. $ (e) Find the marginal profit when x = 10. $ +100 and the demand is given by p(x)=log,(x+1)- (Round answers to the neares cent)