Answer:
First choice: m = -4
Step-by-step explanation:
The second equation is already solved for n, so lets's use the substitution method and substitute m - 2 for n in the first equation.
m - 2n = 8
m - 2(m - 2) = 8
m - 2m + 4 = 8
-m + 4 = 8
-m = 4
m = -4
 
        
                    
             
        
        
        
Answer:
D: 768
Step-by-step explanation:
First, he divides a piece of paper in half. 

He gets two pieces.
Next, he cuts each of the pieces into three parts. 

Thirdly, he cuts each of the 6 pieces into 8 pieces. 

Lastly, he divides each piece into 16 parts. 

He has 768 pieces in the end. (D)
 
        
             
        
        
        
Answer:
ABC
Step-by-step explanation:
They are on the same line. 
 
        
             
        
        
        
Answer:
0.0024
Step-by-step explanation:
1 killogram=1000000
 
        
             
        
        
        
Answer:
€99
Step-by-step explanation:
 The computation of the original price (before the rebate)  of this pair of shoes is shown below:
Given that 
The cost of pair of shoes is € 69.30 i.e. after 30% discount
So, the original price would be 
= € 69.30 × 100 ÷ 0.70
= €99
The € 69.30 shows the 70% value according to this we determine 100% value