Joan had 5 pitchers of water divided by her 8 plants. what fraction of a pitcher did each plant get?

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

How to do this , and can some one explain

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length