The Warren Watch Company sells watches for $20, fixed costs are $100,000, and variable costs are $13 per watch. a. What is the firm's aain or loss at sales of 8,000 watches? Loss, If any, should be indicated by a minus sign. Round your answer to the nearest cent. 3 What is the firm's aain or loss at sales of 18,000 watches? Loss, If any, should be indicated by a minus sign, Round your answer to the nearest cent. 4 b. What is the break-even point (unit sales)? Round your answer to the nearest whole number. units d. What would hannen to the hrask-wwen anink if the sallina arice was raised to $31 but variable costs rose to $21 a unit? Round your answer to the nearest whole nur