Answer :- 
<h3>
3 years</h3>
step by step explanation:-
Let the time be x
principal = rs 8000
Amount = rs 13824
rate = 20% p.a
A = P(1+r/100)^n
13824 = 8000 ( 1 + 20/100)^n
=> 13824/8000 = (120/100)^n
=> 13824/8000 = (24/20)^n 
=> (24/20)³ = (24/20)^n
=> 3 = n 
=> n = 3 years
 
        
             
        
        
        
Answer:
<h3>.There are 36 squares........</h3>
 
        
                    
             
        
        
        
Answer:
the answer is $200
Step-by-step explanation:
i am taking the khan academy quiz right now 
 
        
                    
             
        
        
        
Answer: A. The original price was $608. B. $76 each week C. Quite useful, as it keeps track of the amount of money she still needs to owe each week. 
Step-by-step explanation: For part A, 5 week subtracted by 2 weeks is 3 weeks. 456-228 is 228. Then divide 228 by 3 and you get $76. Then do 2x76 to get 152 and add it to 456, and you get 608.
 
        
             
        
        
        
Answer:
<h3>
             m∠BAC = 80° </h3>
Step-by-step explanation:
m∠BCD = 145°  ⇒  m∠BCA = 180° - 145° = 35°
From ΔABC:
                     m∠ABC + m∠BCA + m∠BAC = 180°
                          65° +  35° + m∠BAC = 180°
                                   m∠BAC = 180° -  100°
                                    m∠BAC = 80°