Answer:
they're equal
Step-by-step explanation:
It can work well here to simplify inside parentheses first.

_____
The correct selection is not show with your problem statement.
Answer:
45 hours a week
Step-by-step explanation:
Ok, so we know that he worked 675 hours in 15 weeks.
So all we need to do is divide the hours by the amount of weeks, which is 15:
675/15= 45
So he worked 45 hours a week!