The annual total revenue for a product is given by R(x) = 30,000x 5x dollars, where x is the number of units sold. To

The annual total revenue for a product is given by R(x) = 30,000x – 5x² dollars, where x is the number of units sold. To maximize revenue, how many units must be sold? What is the maximum possible annual revenue?To maximize revenue,_________units must be sold.(Simplify your answer.