Last week Amy practiced her free throws a total of 5 hours. This was three hours more then she practiced the previous week. How many hours did Amy practice the previous week

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

X+ y = 5 ; x - y =3 solve using linear combination