Ineed a good explanation on these math questions. and !
given a soda can with a volume of 15 and a diameter of 2, what is the volume of a cone that fits perfectly inside the soda can? (hint: only enter numerals in the answer blank).

i wrote 5 but i'm not

find the volume of a cylinder with a diameter of 6 inches and a height that is three times the radius. use 3.14 for pi and round your answer to the nearest hundredth. (hint: you may only enter numerals, decimal points, and negative signs in the answer blank)

i'm clueless on this one.

you so i need this desperately.