PLEASE Help!

How much larger is 3 to the 5th power than 5 to the 3rd power?

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)

Which choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y

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