Riley worked 5 hours on monday, 3 hours on tuesday, and 2 hours on wednesday. he rounded the hours to 5, 3, and 2 before adding them together to get 10 hours. did he make a high or low estimate?

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