Its 23 all you have to do is times all the numbers around
        
                    
             
        
        
        
Answer:
 113.04 cubic units. ".04" is four hundredths.
(the units are not given here. They could be cubic feet, cubic inches, cubic meters, cubic centimeters. or other measurements.)
Step-by-step explanation:
To find volume we need to multiply the area of the base times the height.
The base of a cylinder is a circle. 
The area is πr²
The given radius here is 3
3² is 9
π × 9 using 3.14 is 28.26
Multiply that area by the given height, 4
28.26 × 4 = 113.04
The volume if this cylinder is 113.04 cubic units.
 
        
             
        
        
        
1.5 = 1 1/2 = 3/2
When there is a negative exponent, you find the reciprocal of the base, so therefore: 3/2 ^ -2 = 2/3 ^ 2 
Then you square the numerator, then square the denominator: 2^2/3^2 = 4/9
        
             
        
        
        
Answer:
28
Step-by-step explanation:
Let n = 21, and evaluate the expression.





