Answer:
a = -10
Step-by-step explanation:
-0.4a + 3 = 7
subtract 3 from each side
-0.4a + 3-3 = 7-3
-.4a = 4
Divide each side by -.4
-.4a/ -.4 = 4/-.4
a = - 10
 
        
             
        
        
        
Answer:ot would be 8000
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
It starts with a base cost of $5.25 and increases by $2.50 for every ticket sold. Add 2.50(number of tickets) to the admission cost to get the total cost.
 
        
                    
             
        
        
        
Answer:
E
Step-by-step explanation:
 
        
             
        
        
        
Answer:
 (-1.5, 3.275)
Step-by-step explanation:
midpoint = ( x1+X2/2 , y1+y2/2)
 =(0+(-3)/2, 0.55+6/2)
 =( -3/2, 6.55/2)
 =( -1.5, 3.275)