PLZ HELP!! brainliest and 40pnts PT 1

Find the volume of a cone that has a radius of 1/2 and a height of 1.

a) 3/2 pi b) 3/4 pi c) 1/12 pi D) 1/6 pi

PT 2

Find the volume of a cylinder that has a radius of 1/2 and a height of 1.

a) 1/2 pi b) 1/4 pi c) 3/2 pi d) 4 pi

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?