Which of the following expressions are equivalent ?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

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

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.