We need a picture of the graph
        
             
        
        
        
Answer:
5
6
÷  
1
6
=  
5
6
×  
6
1
=  
5 × 6
6 × 1
=  
30
6
=  
30 ÷ 6
6 ÷ 6
=  5
the awnser would be 5
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
y = 1/2x +5
Step-by-step explanation:
change f(x) to y 
y = 2x - 10
then switch x and y 
x = 2y - 10 
then solve for y
add 10 to both sides and divide both sides by 2 
 
        
                    
             
        
        
        
The solution to the problem is as follows:
For 3 notebooks you pay $1.98 so the ratio is 1:0.66.
For 10 notebooks, then we could scale the ratio and it will become 10:6.60. So they will cost you $6.60.
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
        
             
        
        
        
Step-by-step explanation:
 Pretty sure it's A. It should be the answer