Answer:
Just try to make it make sense to you. 
Step-by-step explanation:
For instance, a + 1 = 5
 a = 4
We know that we should switch the terms as when it comes to normal numbers ,10 + 1 = 11 , 10 = 11-1. Therefore, the only trick is not to memorise, but try to understand the logic behind it. Hope this helps in some way???
 
        
             
        
        
        
32,767/32,768 is in lowest terms and can't be reduced.
        
             
        
        
        
Step-by-step explanation:
.......................
 
        
                    
             
        
        
        
Answer:  square unit
 square unit
Step-by-step explanation:
The formula for calculating the area of a square when the diagonal is given is :

That is :


 square unit
 square unit
 
        
             
        
        
        
Answer:
a) Profit = 84000
b) at break even number of pens sold = 46
Step-by-step explanation:
Profit = Selling price - Cost price
Total revenue generated = 99 * 1000
Total revenue generated = 99000
Total cost on making the pen  = 11 * 1000
Total cost on making the pen = 11000
Total cost including the initial cost = 11000 + 4000
Total cost including the initial cost =  15000
Profit = 99000 - 15000
Profit = 84000
Break even is when the cost are equal to Revenue thus no profit or loss
Revenue = total cost (break even)
9x = 1x + 4000
9x - x = 4000
8x = 4000
x = 500
At breakeven Revenue = 9 * 500
At breakeven Revenue =  4500
since one pen is sold at 99 therefore at break even number of pens sold = 4500/99 = 45.45( to 2 decimal place)
at break even number of pens sold = 46