9 friends are evenly sharing the cost for dinner. If the cost for dinner was $124.20, how much will each friend pay?

13.8

Step-by-step explanation:

124.20 divided by the number of friends so 124.20 divided by 9 = 13.8  

Answer with Step-by-step explanation:

We are given that

a.We have to find g(f(x))

b.We can see that

f(x) is logarithm function and g(x) is linear function.

But , the composition function gof(x) is also logarithmic function.

The composition function gof(x) is 3 times the function f(x).