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Which point is a solution of the inequality 1/2x - 4y <= 4? a) (10,0) b) (0,-2) c) (4,-2) d) (0,-1) and the answer i picked was d thanks

A rancher is putting up a rectangular electic fence to contain some horses. The rancher has 1200 feet of electric wire. The fence needs to be at least 120 feet in one direction in order to contain the barn. Which system of linear equalities describes the...

which inequality is the same as 2x - 1/2y <= 10? a) y <=2x + 5 b) y <=4x + 20 c) y >=4x + 20 d y >=2x + 5 and the answer i picked was c thanks