What single percentage change is equivalent to a 17% decrease followed by a 9% increase?

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?

Pls will give brainliest and all p. s u can zoom in if u cant see plss

In the triangles, bc =de and ac fe. if the mzc is greater than the mze, then ab isdfelth