* I answered some of the questions but need help on question 4 and 5a and 5b.

Due to erratic sales of its sole product-ahighcapacity batery for laptop computers-PEM, Inc. has been experiencing dificulty for some tme. The company's contributon format inoome statement for the most recent month is given below: Sales (12,600 units x$20 per unt) $252,000 Variable expenses 26000 28.000 Food expenses 41,000 Net operating loss $(15,0000 1. Compute the companys CM ratio and its breakeven pointin both unit sales and dolar sales. CM rato 50K Break-even point in units 14,100 Break-even point in dolars 282000