System of equations

-x+y=1
2x+y=-2

please help!

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?

Solve 17= -13 - 8x and show your work.