In order to solve this using V= B(h) (The B is area of the base) you need a radius it doesn't give us that but it does give us the circumference. 
C= 3.14(2r)
25.12=2r divide each by 2 
12.56=r
now use this in the volume formula:
V= 12.56^2(3.14)(66)
V=32,692.86 cubic inches 
        
             
        
        
        
he divided each rectangle in 12 identical parts
for the first rectangle he shaded 1/3 of 12 = 4 parts 
for the second rectangle he shaded 1/4 of 12= 3 parts
so 12= 3*4 leads to a minimum of 12 parts 
:) 
 
        
             
        
        
        
Answer:
80,000
Step-by-step explanation:
7 is the tean thousand
Add 1 because 5 is a big amount.