Simplify.

7/3+3(2/3−1/3)^2
The "/" means that it's a fraction

Which inequality has a dashed boundary line when graphed ?

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?

Which linear inequality is represented by the graph?