I need help with these homework questions!

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. 40Ã�â‚¬ m3
B. 120Ã�â‚¬ m3
C. 240Ã�â‚¬ m3
D. 720Ã�â‚¬ 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.

Please help me asap!!

6 answers

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the volume of anything pointy with straight sides = (1/3) base area * height

Helppp

1.A
2.C
3.C
4.A
5.A

1.C
2.C
3. C
4. A
5. A