Solue simultaneous
2y-x=4
2x+3y-x+4y=17

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°