Please answer fully and explain

Which point is on the line y=-2+3? (-2,-1) (3,3) (3,-3) (-3,-9)

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

How can you construct perpendicular lines and prove theorems about perpendicular lines