Answer:
It decreased the amount of money in his bank account by $100
Step-by-step explanation:
When you withdraw money you you are taking money away so you are decreasing the amount of money in Mr. Moore's bank account by $100 dollars.
Use similar volume to calculate
which is the (ratio of edges)^3 = (ration of volume)
so just put the numbers in, let the volume of smaller pyramid be y.
(3/4)^3 = y/320
27/64 = y/320
y=135in3
The answer is A my dude, this is easy math lol