Please help I will appreciate it

Which point is on the line y=-2+3? (-2,-1) (3,3) (3,-3) (-3,-9)

David must install fencing around a lot that is shaped like a right angle.the side of lot that runs east-west is 200 ft long.the side of the lot runs north-south is 125 ft long.calculate how many feet of fencing he will need to surround the entire lot.

Which ahows the graph of the solution set of 6x+4y< 12