Solve the system of equations. y= -3x+4
-4x+y= -10

A. (1, 1)
B. (-6, 22)
C. (2, -2)
D. no solution

How to do this , and can some one explain

Mario is constructing a frame for 10 in. by 8 in. photo. he wants the frame to be the same with all the way around in the same area of the frame and photo to be 120 square inches what is the dimension of the frame?

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.