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The weekly marginal revenue from the sale of x pairs of tennis shoes is given by the equation below, where R(x) is revenue in dollars. 400 R'(x) = 40 0.02x + , x+ 1 R(0)= 0 Find the revenue function. Find the revenue from the sale of 2,000 pairs of shoes. Find the revenue function, R(x). R(x) = I] (Use integers or decimals for any numbers in the expression.) Find the revenue from the sale of 2,000 pairs of shoes. The revenue the sale of 2,000 pairs of shoes is $|:|. (Round to the nearest cent as needed.)