Answer:
1) 9x-4
Step-by-step explanation:
7x+2x= 9x
-8+4= -4
9x-4
 
        
                    
             
        
        
        
Answer:
y=(3/5)x+1
Step-by-step explanation:
 
        
             
        
        
        
Answer:
a = (x - b)/2
Step-by-step explanation:
2a + b = x
-b         -b
2a = x - b
/2        /2
a = (x - b)/2
for ex:
x = 3
b = 2
a = ((3) - (2))/2 = 0.5
a = 0.5
2a + b = x
2(0.5) + 2 = 3
 
        
             
        
        
        
Answer:
D(2,2)
Step-by-step explanation:
The diagonals of a parallelogram gram bisects each other.
Therefore E is the midpoint of AD.
Let the coordinates of D be (a,b).
By the midpoint rule:

This implies that:

This implies that:


 
        
             
        
        
        
 3.85 if you divide the total cost by the number of gallons you should get your answer hope this helped