Greatest common factor of 12 18 and 20

Aline passes through 3,7 and 6,9 what equation represents the line

Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work:

Which of the following points is a solution to the system of equations shown? y - x = -1 x + y = -5