Worth 35 points, due today. I appreciate any work, thanks.

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?

Ntriangle abc, m∠a = 35° and m∠b = 40°, and a=9. which equation should you solve to find b?

⦁plzzz me asap worth 30 points. part b: find the area of just the wood portion of the frame. this is called a composite figure. explain and show your work.