If f and g are inverse functions, then what is the composition of g and f equal to?

What’s the answer ? use the picture to see the problem

If benito is selecting samples of five values from the table, which row will result in the greatest mean? population data row 1 4 2 2 3 3 row 2 3 3 4 3 2 row 3 2 4 3 4 3 row 4 3 4 4 7 3 row 1 row 2 r

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?