The cost of two different book shelves is in the ratio 2:4. if the more expensive book shelf is $120, how much is the cheaper book shelf?

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Drag the tiles to the correct boxes to complete the pairs. match the cart-coordinates with their corresponding pairs of y-coordinates of the unit circle

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?