<u>Answer:</u> The minuend is 20000
<u>Step-by-step explanation:</u>
To calculate the minuend, we use the equation:

We are given:
Difference between the two numbers = 7194
Subtraend = 12806
Putting values in above equation, we get:

Hence, the minuend is 20000
 
        
             
        
        
        
2880 books
Divide 1920 by 40
Then multiply the number by 2
You will get 96 
Then multiply it by 30
        
             
        
        
        
How many booths and tables are there altogether?
        
             
        
        
        
The formula is 2(wl+hl+hw) to calculate surface area fo a rectangular prism.