Alpha Limited in producing and selling plastic pen cases. The average selling price is $12 per unit. The production units is a mixed cost. Please refer to the past monthly data below. a) Calculate the variable cost per unit. b) Calculate the fixed cost. c) If the company produces 1,900 units in month 7 , what would be the projected total cost? d) Find the breakeven quantity. e) The company plans to produce and sell 2,000 units in month 8. If the target profit is $10,000, find the revised selling price