To answer this question, we have the start-up costs of $ 52,000
 A monthly inflation of $ 0 is assumed
 Operating costs  are $680
 The daily gain  is $960
 For the Part A.
 The inequality that this situation represents
  
 So:
 
 Where d represents the number of days.
 For the Part B.
 To start earning, you must replace all the initial investment and cover the expenses per day. The time that must pass for this to happen is obtained by clearing "d" from the inequality.
  
 d> 185.71 days
 Then, the sum of the net profits will be greater than the initial investment after 186 days of starting the business.
 
        
             
        
        
        
160 is 100% of 160, 480 is 4 times that. So 400%
        
                    
             
        
        
        
Since it’s vertical it would be x=-7
        
             
        
        
        
Answer:
A) 11/36
Step-by-step explanation:
x + 4/9 = 3/4
get a common denominator of 36  (4*9 = 36)
x + 4/9 * 4/4 = 3/4 * 9/9
x + 16/36 = 27/36
subtract 16/36 from each side
x + 16/36 - 16/36 = 27/36 -16/36  
x = (27-16)/36
x = 11/ 36