What is the coordinates of the midpoint of HX 4 1/2,-3 1/4,x 3 3/4, -2 3/4

The probability of winning something on a single play at a slot machine is 0.11. after 4 plays on the slot machine, what is the probability of winning at least once

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3