What’s the surface area for this question

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

What is the solution to the equation below? 3/x-2+6=square root x-2 +8

If the value of cos330°is√3/2 then find cos 165°.