Please help
Will mark brainliest
If the slop is -1/2 how does the slope tell you to move

The equation respenting the left table is

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Aball is dropped from a height of 10m above the ground. it bounce to 90% of its previous height on each bounce. what is the approximate height that the ball bounce to the fourth bounce?