Answer:
A 6% sales tax.
Step-by-step explanation:
 
        
                    
             
        
        
        
Step-by-step explanation:
Area if the rectangular pool= 10m×7m×8m
 = 560m³ 
3/4 of 560m³
3/4×560
= 420
Hence , the water occupies 420m³ place 
 
        
             
        
        
        
Answer:
11
Step-by-step explanation:
 
        
             
        
        
        
If using the radius, you would multiply the radius by 2*pi, to calculate the circumference, which should be the same as the answer i got.