PLSSS I SHOULD KNOW HOW TO DO THIS BUT I DON'T so uh can someone help T-T

For the equation below, x is the input and y is the output. y = -4x + 3 if the input is -8, then the output is

The length and width of a rectangle are consecutive even integers the area of the rectangle is 120 squares units what are the length and width of the rectangle

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?