Please help me solve this and explain throughly please

Determine whether the points (–3,–6) and (2,–8) are in the solution set of the system of inequalities below. x ? –3 y < 5? 3x + 2 a. the point (–3,–6) is not in the solution set, and the point (2,–8) is in the solution set. b. neither of the points is in the solution set. c. the point (–3,–6) is in the solution set, and the point (2,–8) is not in the solution set. d. both points are in the solution set.

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?