Answer:
2.14 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Third
Step-by-step explanation:
First would be, simplified, 2x+10=2x-10
Second, simplified, -2x-10=2x-10
Third, simplified, -2x-10=-2x-10
Fourth, simplified, -2x+10=2x-10
So it's third :)
hope this helps :D
 
        
                    
             
        
        
        
For 4 copies, the total cost for preparing and printing will be the same.
Step-by-step explanation:
Let,
p be the number of pages
Company A;
Charges of preparing = $6
Charges of per page print = $2.50
A(p)= 2.50p + 6   Eqn 1
Company B;
Charges of preparing = $4
Charges of per page print = $3
B(p)= 3p + 4    Eqn 2
For equaling the cost; 
A(p) = B(p)

Dividing both sides by -0.50

For 4 copies, the total cost for preparing and printing will be the same.
Keywords: Addition, division
Learn more about division at:
#LearnwithBrainly
 
        
             
        
        
        
Answer:
It has 5 significant figures.
Step-by-step explanation: