For this case, the first thing we must do is find the unit cost.
We have then:
[tex]C = \frac {68.64} {4}\\C = 17.16[/tex]
We now look for the number of hats that can be purchased with $ 154.44.
We have then:
[tex]N = \frac {154.44} {17.16}\\N = 9[/tex]
Therefore, you can buy 9 hats with $ 154.44.
Answer:
Melissa sells 9 hats.
C. 9
