Answer:
18 I think 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer: . Rotation about the y-axis by π
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Multiply the divisor by a power of 10 to make it a whole number.
Multiply the dividend by the same power of 10. Place the decimal point in the quotient.
Divide the dividend by the whole-number divisor to find the quotient.
 
        
             
        
        
        
Answer:
A hope this helps
Step-by-step explanation: