The demand fora new computer game can be modeled by p(x) = 47 3 In x, for 0 s x s 800, where p(x) is the price consumers will pay, in dollars, and x is the number of games sold, In thousands. Recall that total revenue is given by R(x) = x - p(x). Complete parts (a) through (0) below. a) Find R(x). R(x) = :J b) Find the marginal revenue, R'(x). R'tX)= D c) How many units will be sold it the price that consumers are willing tipay is $40? The number of unils that will be sold is . i' (Round to the nearest whole number as needed.)