Which statements about the graph of y=tax are true

Ineed asap graph the system of equations 2x+y=5; 14+7y=35

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

Neveah and clint are baking muffins for the bake sale. they need to bake 30 muffins for their display case. clint has baked 4 so far, and neveah has baked 7. how many muffins (m) do they have left to bake? show your work!