Hey lovelies, could I get some help here? tysm <333 xx

If f(x)= 3x+6 which of the following is the inverse of f(x)

Madeline takes her family on a boat ride. going through york canal, she drives 6 miles in 10 minutes. later on as she crosses stover lake, she drives 30 minutes at the same average speed. which statement about the distances is true?

Which point-slope form equation represents a line that passes through (3,-2) with a slope of -4/5