Uh, help? My quarantine brain does not understand.

Classify the following triangle check all that apply

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

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10