Answer:
16
Step-by-step explanation:
4^2
This means the base of 4 multiply by itself 2 times
4*4
16
Plug in 0 for y to find the x intercept:
7x +3(0)= -21
7x=-21
x= -3
Plug in 0 for x to find y intercept:
7(0) + 3y= -21
3y= -21
y= -7
The inverse functions have a property that the composition of two inverse functions always results is x.
From the given options, only the pair given in option B result in the composition equal to x.

This proves, F(x) and G(x) are inverse of each other.
So the answer to this question is Option B
11.6666667 yards I believe.
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