A firm manufactures a product that sells for $16 per unit. Variable cost per unit is $4 and fixed cost per period is $1080. Capacity per period is 1500 units. (a) Develop an algebraic statement for the revenue function and the cost function. (b) Determine the number of units required to be sold to break even. (c) Compute the break-even point as a percent of capacity. (d) Compute the break-even point in sales dollars. (a) The revenue function is TR = (Type an expression using x as the variable. Do not include the $ symbol in your answer.) The cost function is TC = D. (Type an expression using x as the variable. Do not include the $ symbol in your answer.) units. (b) The number of units required to be sold to break even is (Round up to the nearest whole number.) (c) The break-even point as a percent of capacity is %. (Round to two decimal places as needed.) (d) The break-even point in sales dollars is $ (Round to the nearest cent as needed.)