An 85kg man stands on a scale inside an elevator. What is the weight in Newtons that the scale reads when the elevator is  a.  at rest?
b.  moving upward at a constant speed of 5m/s?
c.   moving downward at a constant speed of 8m/s?
d.  moving with an upward acceleration of 3 m/s2
e.  moving with a downward acceleration of 4 m/s2

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.

Icould really use some with this question.

Could somebody me with this radical simplification?