I solved it but don’t know how to show my work
        
                    
             
        
        
        
Answer:
300,000$ 
Step-by-step explanation
<h3>♣ Formulate:</h3>
Based on the given conditions,
formulate:
150,000 x (100% + 100%)
•••••••••••••••••••••••••••••••••
<h3>♠ Calculate</h3>
150,000 x (1 + 1)
= 150,000 x 2
= 300,000
{ Alternative Forms: 3 x 10⁵ }
Answer: 
Ben bought a Rolex for $150,000 with a 100% markup, It will cost 300,000$ 
•♣••♠••♣••♠••♣••♠••♣••♠••♣•
 
        
             
        
        
        
Answer:
Step-by-step explanation:
It’s a cube with edge length of 12 cm. 
The cube has six faces, and the are ma if each face is 144 cm² 
Total surface area = 6×144 = 864 cm² 
 
        
             
        
        
        
See attached files for detailed solutions
 
        
             
        
        
        
Cross multiplying:-
cot^2 x = (csc x+ 1)(csc x + 1)
also  cot^2 x =  csc^2 x - 1  = (csc x + 1)(csc x - 1)  (Known Identitiy)
so the equation is not an identity