Answer:

Step-by-step explanation:


Subtract 9 from both sides:


Add 6x to both sides:


Divide both sides by -4:


 
        
                    
             
        
        
        
Answer:
0.9375
Step-by-step explanation:
Do the long division and you'll find the answer.
 
        
                    
             
        
        
        
You didn’t post an image of the graph..
        
             
        
        
        
Add up minutes
1stmonth+2ndmonth+3rdmonth=320+243+489=1052
how many 200's are there
6 of them (companies want money so they see, ok, you bought like 1 minute, we will charge you for the whole 200 minutes since you got in that zone)
6 times 25=150
cost is $150 (mom is not going to be happy, she spend like 3% of her waking hours takling on the phone)