Answer and Explanation:
The computation is shown below:
a.
Particulars F G H
Selling price (a) $100 $80 $110
Variable costs (b) -$60 -$50 -$65
Contribution Margin $40 $30 $45
Milling machine time
(minutes) 10 6 5
Contribution Margin
per minute $4 $5 $9
based on the above calculation, the product H should be emphasized as it has the highest contribution margin per minute
b. The price the company should pay is
= $9 × 60 minutes per hour
= $540