Answer:
(a) 22,000
(b) D = 13,200; E = 8,800
(c) 35,000
Step-by-step explanation:
(a) The average marginal contribution per unit is:

In order to break-even, total contribution must equal fixed costs:

(b) Multiply the total number of units by each product's sales mix to find the number of units of each product:

(c) The number of units required to realize an operating income of $119,600 is:
