Answer:
If you earn $15 every week then you will have earned $75 by the end of 5 weeks.
Explanation:
If $15 is 1 week,
and you need to find how much money after 5 weeks,
you multiply by the same number on both sides
1 = 15
1*5 = 15*5
5 = 75
So after 5 weeks you get $75