Answer:
For Store A each bottle of nail polish costs 3.75
For Store B each bottle of nail polish costs 3.50
Step-by-step explanation:
For store A all you have to do is divide 4 by 15 and for store B divide 6 by 21
For , we have two cases:
Therefore, for , we have the following cases:
Solving, we have:
.
Therefore,
(5,4)
5p-z-20
Hope this helps!