A firm manufactures a product that sells for $ per unit. Variable cost per unit is and fixed cost per period is Capacity per period is 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 nothing. (Type an expression using x as the variable. Do not include the $ symbol in your answer.) The cost function is TC nothing. (Type an expression using x as the variable. Do not include the $ symbol in your answer.) (b) The number of units required to be sold to break even is nothing units. (Round up to the nearest whole number.) (c) The break-even point as a percent of capacity is nothing%. (Round to two decimal places as needed.) (d) The break-even point in sales dollars is $ nothing.