How do i simplify 12/15, 48/56, 28/36, and 15/40

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

Subscriptions to a popular fashion magazine have gone down by a consistent percentage each year and can be modeled by the function y = 42,000(0.96)t. what does the value 42,000 represent in the function?

Justin has 750 more than eva and eva has 12 less than justin together they have a total of 63 how much money did