Answer and Explanation:
The computation is shown below:
a. The contribution margin ratio is
= (Selling price - variable cost) ÷ (Selling price)
= ($20 - $14.20) ÷ $20)
= 29%
b. The contribution margin per unit is
= (Selling price - variable cost)
= ($20 - $14.20)
= $5.80
c. The income from operations is
= $5.80 × 38,000 units - $108,000
= $112,400