Lcm of 9 and 5 pls and this would alot

The quadratic function h(t) = -16.1t^2 + 150 models a balls height, in feet, over time, in seconds, after its dropped from a 15 story building. from what height in feet was the ball dropped?

What is a graph with a never ending line called?

Which equation can be solved to find x the measure of jk in the apex