can someone pleasee help me. please and thank you!! it’s pemdas and gems:))) and the options are on the side!

Precalculus question, image attached.

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?

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost