I am not good at math; if you are could you please help?

What could explain what happened when the time was equal to 120 minutes

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

If 3 3/4 lb. of candy costs 20.25 how much would 1lb. of candy cost