Given the chart, we are asked to find the marginal cost to produce four jackets. The marginal cost refers to the increase in total cost when producing one additional unit of a product. In this case, it is the cost of producing the fourth jacket compared with the cost of producing the third jacket.
Here are the steps to find the marginal cost to produce the fourth jacket:
1. Identify the total cost of producing three jackets. According to the chart, the total cost for producing three jackets is \[tex]$43.
2. Identify the total cost of producing four jackets. According to the chart, the total cost for producing four jackets is \$[/tex]55.
3. Calculate the marginal cost by finding the difference between the total cost of producing four jackets and the total cost of producing three jackets.
[tex]\[
\text{Marginal Cost} = \text{Total Cost at 4 jackets} - \text{Total Cost at 3 jackets}
\][/tex]
Substitute the values:
[tex]\[
\text{Marginal Cost} = 55 - 43 = 12
\][/tex]
Therefore, the marginal cost to produce four jackets is \$12.
The correct answer is:
12
