Which equation doesn’t belong 4 (x + 3) =9, 4+ 3x =9, 4 * x + 12= 9, 9 = 4x + 12

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?

Which is the focus of a parabola with equation y2=4x

Abook store is having a 30 perscent off sale. diary of the wimpy kid books are now 6.30 dollars each what was the original price of the books