Please someone help me with this

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

What is the volume of the cone to the nearest cubic millimeter? (use π  = 3.14) a) 46 mm3 b) 128 mm3 c) 183 mm3 d) 275 mm3 diameter = 5 mm height = 7 mm how do you do this problem step by step?

What is the gcf of 20c^3-5c^4+30c^6