PLS HELP, Which of the following formulas could be used to determine the volume of a cone stacked on top of half a sphere? Select all that apply.

V = lwh
V = Bh
V = Bh
V = r2h
V = r2h
V = r3

How to determine whether two known pairs of points are on the same line.

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y > 2x + 3y is less than negative 3 over 2 times x minus 4part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points)part b: is the point (â’4, 6) included in the solution area for the system? justify your answer mathematically. (4 points)

Anyone know these questions? i need ,.