Find the volume of the pyramid.​

What is the standard form of -5x^2+2x^4-11+x^3+3x

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?

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?