10+5=5+10
They both ate the same amount of food. 
Commutative Property of Addition is used. 
        
             
        
        
        
Answer:
I think Leslie Is 20 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
1/2 ornament in an hour
Step-by-step explanation:
Given


Required
Determine the ornaments per hour
This question implies that we calculate the unit rate.

Substitute values for Time and number of ornaments


<em>This implies that Constance can decorate 1/2 ornaments in an hour</em>
 
        
             
        
        
        
F(x)=x²+3x
f(0)=0²+3*0=0+0=0
Answer: f(0)=0
f(4)=4²+3*4=16+12=28
Answer: f(4)=28
        
             
        
        
        
Answer:
It is (D) 

Step-by-step explanation:
I hope that is useful for you