Answer:
#3
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Yes
Step-by-step explanation:
Both angles can be 90 degrees
 
        
                    
             
        
        
        
Answer:
-1/2
Step-by-step explanation:
slope is rise over run 
or y change divided by x change
to find the slope you need to find points on the graph that meet exact points on the graph
i see (0,1) and (2,0)
to find slope without graph it would be (y2-y1)/(x2-x1)
in this case (0-1)/(2-0)
=-1/2
with graph you can count that it goes down -1 squares and to the right 2 squares
hope this helps
 
        
                    
             
        
        
        
Slope=4 Point=(1,6)
Y=Mx+b
6=4(1)+b
6=4+b
-4 -4
————
2=b
Equation:4x+2
        
             
        
        
        
First you would subtract 18 from 110 and get a result of 92 then divide by 4 and get 23 so each book is 23 dollars hope this helps mark as brainlist