6. Morris Company sells two products. Product A's contribution margin is $2, and Product B's contribution margin is $3. Product A makes up 80% of the sales mix, and Product B makes up 20% of the sales mix. a.What is Morris' weighted average contribution margin? Show all calculations needed. b. If fixed costs are $88,000, how many units of A and how many units of B must Morris sell to Break even with this sales mix