Write an equivalent expression to: 5(2x + 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

Acircle has a circumference of 28.36 units what is the diameter of the circle

Anyone know these questions? i need ,.