Apogo stick cost $30. a scooter cost $40 more than the pogo stick. a bicycle cost $50 more than the scooter. what was the total cost of all three?

How do i do this activity, is appreciated

What is a possible solutions of the x> 3?

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?