Can you guys help me solve this

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

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities