What does this mean 9x5000=10

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

Find the slope of the line passing through a pair of points

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?