$7.50 for 5 kids you divide 4.50 by 3 and get 1.50 and you take 1.50 times 5 and get 7.50
Answer:
The answer is option 3.
Step-by-step explanation:
The steps are :



Solve for r.
You want to get r by itself on one side on the equal sign.
bh + hr = 25
Subtract bh from both sides.
hr = 25 - bh
Divide h on both sides.
r = 25 - bh / h
The two h's cancel each other out.
r = 25 - b
Hope this helps!