Answer:
1. 6n - 15
2. x + 10
3. -4d + 15
4. true, associative property
5. distributive, commutative
Step-by-step explanation:
1. distribute 3/4 into the parentheses, so multiply 3/4 * 8 and 3/4 * -20
2. distribute the 2 into the parentheses so multiply 2 * 3x and 2 * 5, then combine like terms
3. distribute -3 into the parentheses so -3 * 4D and -3 * -5 then add like terms
4. add like terms on both sides of the equal sign and you get 10x on both sides. this is the associative property because it doesn't matter what's inside or outside the parentheses you get the same answer no matter how you add them up 
5. the first part is distributive because you distributed the three into the parentheses and the second part is commutative because you switch them around and you can get the same answer
 
        
             
        
        
        
Answer:
0.5
Step-by-step explanation:
 
        
             
        
        
        
C both of these is correct
        
             
        
        
        
First do 48.50-21 then divide that amount by 5. Then that’s how much each pair of socks cost so 
48.50-21=27.50 
27.50%5=$5.50 so rx=$5.50
        
                    
             
        
        
        
Answer:
y=-6/5x + 1
Step-by-step explanation: