Can someone check my answer for this homework assignment?

Question

What is the volume of a square pyramid that is built in a cube with edges of 12 inches?

Square pyramid in 12-inch cube
A. 48 in3
B. 144 in3***
C. 576 in3
D. 1,728 in3
Find the volume of a square pyramid with base edges 4 ft. and height 15 ft.
A. 20 cu. ft.
B. 60 cu. ft.
C. 80 cu. ft.
D. 240 cu. ft.***
Find the volume of a cone with radius 6 m and height 20 m.
A. 40π m3
B. 120π m3***
C. 240π m3
D. 720π m3
Compare the quantity in column A with the quantity in column B. Choose the best answer.

detail via d long description
A. The quantity in Column A is greater.
B. The quantity in Column B is greater.
C. The two quantities are equal.***
D. The relationship cannot be determined from the information given.
Compare the quantity in column A with the quantity in column B. Choose the best answer.

detail via d long description
A. The quantity in Column A is greater.
B. The quantity in Column B is greater.***
C. The two quantities are equal.
D. The relationship cannot be determined from the information given.

Answer 1

Someone please check them for me, I don't want to fail. I am already failing in math enough as it is! D:

Answer 2

Anyone??

Answer 3

first one wrong
(1/3)base area*height

second one wrong, same formula

third one wrong, same formula again

I have no idea what the bottom 2 are about.

Answer 4

So the rest of them are right?

Answer 5

So for the first one, I would do 12 divided by 3 then times 12?

Answer 6

1.
12 * 12 * 12 = ?

Answer 7

1. pyramid
12*12 *12/3

Answer 8

The first answer is wronggg!!!😩y’all did me dirty🤣😭

Answer 9

Ok I got all of them wrong 😭😭

Answer 10

ok, I need help with this too so like..-

Answer 11

its all wrong y'all sus

Answer 12

i need help on this people say it is all wrong 🤔