Answer:
if this is high school i cant do it
Answer:
imma need my points back
Step-by-step explanation:
Can you please attach the photo?
The third one is correct.....so go for it without hesitation
Answer:
4000 
Step-by-step explanation:
V = 1/3(Bh) where B is the area of the base and h is the height of the pyramid
B = 20(20) = 400 h = 30
V = 1/3(400)(30) = 4000 