How to solve systems of linear equations step by step?

The first hexagon is dilated to form the second hexagon select the answers from the drop box menus to correctly complete the statement

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.

How do you do the foil method with polynomials?