A small ice cream company estimates its revenue (the money earned from selling ice cream) to be R = 4x dollars, where x = the number of ice creams sold. The ice cream company estimates its costs by C = 2.5x + 750 dollars, where x = the number of ice creams sold.What is the selling price of each ice cream? dollarsThe profit from selling a ice creams is P =In order to break even, the company must sell at least ice creams.What is the margin of profit if 400 ice creams are sold? dollars. (If a loss, indicate with a negative sign)What is the margin of profit if 600 ice creams are sold? dollars. (If a loss, indicate with a negative sign)