Answer:
Step-by-step explanation:
I don't think it really does grow by a constant rate. As he puts money in, the amount he puts in becomes less significant to the total.
Suppose he starts at 100 dollars. 
After week one, he puts in 100 + 15 = 115 dollars.
The 15 dollars represents an increase of  15/100 
After the second week, he puts in another 15 dollars. He has 115 in there already. 
(15/115) * 100% = 13.04% 
After the third week, he puts in another 15 dollars. (15/130 ) * 100% = 11.53
And so one
 
        
             
        
        
        
Answer:
23 degrees
Step-by-step explanation:
6x + 42 = 180
x = 23
 
        
                    
             
        
        
        
22+4*n-82 hope this is what u are looking for
        
             
        
        
        
Answer:
x=12
Step-by-step explanation:
move the 3 to the other side to get x by itself.
check: 12 + 3 = 15