The top question is already filled out (if you see an error in the top one can you let me know in the comments only please?) and what I need to answer is the bottom question, can any of you help me please?

What is the volume of a rectangular prism if the length is 10.4 mm the width is 5 mm in the height is 8 mm

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

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.