A rotation is a rigid motion
        
             
        
        
        
Answer: 11.4
Step-by-step explanation:
I did part / whole = % / 100
So x / 76 = 15 / 100
76 x 15 = 1140
1140 ÷ 100 = 11.4
 
        
                    
             
        
        
        
Answer:
D
-3 * (-4) matches, as well as the powers (I guess you wanted to communicate that these are powers, but it would also be correct if these where factors)
 
        
             
        
        
        
Answer:
To express your answer in terms of pi, simply refrain from substituting pi's numerical value for its symbol in the equation. That way, your answer will look like xπ where x is whatever number you come up with, and π is simply a placeholder. 
 
        
                    
             
        
        
        
(-4)^2 
A negative base raised to an even power gives us a positive so 
4^2
4x4=16