What is the value of the expression 15-5 1. 1 3125 2. 125 3. 25 4. 3125

Solve the system of equations. y= 2x y= x^2 - 15

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.