Math problem with 4/7ths being the answer

In the coordinate plan (-6,9) b (3,9) c (3,3) def is shown in the coordinate plan below

The coordinate grid shows points a through k. which points are solutions to the system of inequalities listed below? 2x+ ys 10 2x 4y < 8 oa c, d, k o e, f. g, j oa, c, d, h, k oe, f. g, h, j

Need on this geometry question. explain how you did it.