Answer:
130 expected hits
Step-by-step explanation:
520 attempts times 0.25 is 130
Between the 4 and the 7 is it a multiplication or an X?
If the multiplication sign, this is the solution

Answer: 13.71
Step-by-step explanation:
20+6+17+10+19+15+9=96
96/7=13.71
1. The amount will remain the same because 1/8*8/1*x=1x
2. 15*5280/3600=ft per second
I believe you may have the order incorrect. If we were looking at g(f(x)) the answer would be 47. We would get this by sticking the 3 in for x in f(x) and solving, which would give us 48. We would then stick that answer in for x in the g(x), giving us 47.
In its current order the answer would be 28.