Please help! Will mark brainliest

Question 13 of 451 pointwhich statement correctly describes the inverse of the following function? a. it is negative.b. it is a horizontal shift.c. it is not a function.d. it is a function. give an explanation as to why you chose that answer. (i think its either a or d.)

Carlos spent 1 1/4 hours doing his math homework he spent 1/4 of his time practicing his multiplication facts how many hours to carlos been practicing his multiplication facts

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