Step-by-step explanation:
r-5r-6s+8s-15
-4r+2s-15
= 2s-4r-15
So if she bought 20 share of stock for $175 that means that she paid $8.75 for each stock so if she made $25 you add then you divide
175÷20 = $8.75
175+$25=$200 she sold them for
$200 ÷ 20= $10
Answer:
The simplified expression is:

Step-by-step explanation:
Given the expression

solving the expression

∵
∵ 
∵ 
Therefore, the simplified expression is:

The answer is three you have to times the top numbers and divide