Solution:
According to the problem, a regular work week consists of 5 work days with 8 hours a day. This is equivalent to say:
5 x 8 hours every regular work week.
That is:
40 hours every regular work week
then, the money earned per hour is:
![\frac{300\text{ }dollars}{40\text{ hours}}\text{ = 7.5 dollars per hour}](https://img.qammunity.org/2023/formulas/mathematics/college/68b8cg14jh2e7nnes3ckrc773l6l1dln0z.png)
then we can conclude that the correct answer is:
$7.5