Composing functions means that the input of the outer functions is the output of the inner function.
In fact, you can rewrite the circle notation as

So, we can substitute g(x) with its expression:

And since f(x)=x+5, we simply have to add 5 to its input:

Similarly, we have, substituting f with its expression,

And since g(x)=4x+2, we have to multiply the input by 4 and add 2:

Answer
MULTIPLY 2.2 & 5.5
Step-by-step explanation:
They are both SI units of measurements
N(75/100)=4.5 multiply both sides by 100
75n=450 divide both sides by 75
n=6cm
Answer: 5, it appears more than the other scores the golfer got