Please answer this correctly without making mistakes I want experts ace or genius people to answer this correctly without making mistakes

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

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?