13 points! do not use up an answer if you don't know it! i really need !

okay so my math sheet is due in like 45 mins.. and i'm stressed can anyone me, ? the problems are in the photos below.

in advance!

there are about 10 questions so can you do something like below.

1 - *answer*
2 - *answer*
3 - *answer*

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !

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step-by-step explanation: