generate by selling x purses can be modeled by the function R x 3x 1920x and the total annual cost associated with producing these purses is given by C x 270x 143 000 A Determine a formula for the profit function and simplify your formula completely B Use the profit function to determine the number of purses x that should be sold to maximize profit Include units with your answer C Use the profit function to determine the maximum profit Include units with your answer