Matthew and Ethan were flying paper airplanes Matthews airplane flew 36.5 cm and Ethans airplane flew 18 cm. How many inches farther did Matthew airplane fly than Ethans

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