Please help just need the answer

What properties allow transformation to be used as a problem solving tool

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

Which of the following are independent events? a) knowing that it is going to rain tomorrow, and bringing an umbrella to schoolb) knowing that you have to get up early tomorrow, and going to bed before 9 p.mc) knowing that it is going to rain tomorrow, and going to bed before 9 p.md) knowing that you have a test in school tomorrow, and studying thw night before