3(R+ 1) - [2(8 - 2R)-3(3 - R)] = 2(R+ 5) - 4

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.