The unit cost, in dollars, to produce tubs of ice cream is $9 and the fixed cost is $21228. The revenue function, in dollars, is R(x) = -2x + 491x a. Find the profit function. P(x) -2x + 482x - 21228 -2x + 482x - 21228 b. How many tubes of ice cream should be produced to receive maximum profit? What is the maximum profit? Tubes of Ice Cream: Maximum Profit= $ c. At what quantity is the smallest break-even point? co tubs of ice cream