M + 3n =7 help me solve m

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

If np3 /nc2 = 6, find the value of n

State if it is acute obtuse or right