Slope -7 and​ y-intercept ​(0,​9)

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!

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2