use the elimination method to solve the system of equations. choose the correct ordered pair -x+y=-2 2x-3y=4

Ten times the square of a non-zero number is eqaul to ninety times the number

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?