Answer:
a. Assets - Liabilities
Step-by-step explanation:
Assets/Liabilities is a management method to minimize risk. So, it cannot be the answer.
There is no formula like "Assets + Liabilities" and "Assets x Liabilities" in accounting to calculate the net worth. Therefore, those can be eliminated. 
We know that net worth is calculated by deducting all liabilities (long-term and short-term) from net assets. Therefore, option (a) is the correct answer. 
 
        
             
        
        
        
Answer:
320 customers is the answer
Step-by-step explanation:
1. You have to divide 144 by 45% to find one percent of the customers (you get 3.2).
2. Once you get one percent of all of the customers (3.2) you multiply it by 100 to get 100 percent of the customers (or total number of customers).
So, 320 total customers
Have a great day, I hope you like the explination.