What are the coordinates of the midpoint of the line joining (-2, 7) and (4, -3)

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry