State the property that is illustrated. 3 + (6 + 7) = (5 - 7) + 3

Find the solution of this system of equation -7x+y=-20 9x-3y=36

If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?

Drag the tiles to the correct boxes to complete the pairs. label each function. as even , odd, or neither.