Okay so first of all you are going to cross multiply, which is simply multiplying diagonally across so (6x×5 and 25×3) then you just answer each part and set them equal to each other so (30x=75). Then you just divide 30 on each side which ends up being (x=2.5)
Answer:

Step-by-step explanation:
Given


Required
Find f(g(x))
If: 
Then:

Solve the denominator (take LCM)


It can be solved further as:



Answer:
18 boys
Step-by-step explanation:
18=6x3
6x4=24
24+18=42
No, you do not have enough
Answer:
D
Step-by-step explanation:
hope this help