Help anyone can help me do this question, I will mark brainlest.​

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

Which of these angles are supplementary? a. 100o and 90o b. 78o and 102o c. 54o and 146o d. 12o and 78o