Since each angle of the hexagon is a 30 degree rotation just count the letters as you move and multiply by 30. 
1. 120 degrees
2. 30 degrees
3. 30 degrees
        
             
        
        
        
Answer:
r = 1/pt.
Step-by-step explanation:
1 = prt
Divide both sides of the formula by pt:
`1 / pt = r.
 
        
             
        
        
        
Answer: a) 8.779 years
                b) 8.664 years
<u>Step-by-step explanation:</u>
a)
 
- A: accumulated amount (balance)
- P: principal amount (original/initial investment)
- r: interest rate (convert to a decimal)
- n: number of times compounded per year
- t: number of years
Given: A = 1800, P = 900, r = 8% = 0.08, n = 3, t = unknown

b)  


 
        
             
        
        
        
The absolute value is always non-negative!
So the absolute value of 57 is 57 itself, as it's non-negative (i.e. it's positive or 0). 
Opposite value is the number with a different sign: an opposite value of a positive number is negative, so here it will be -57 .
The correct answer is C.