1.  this is a series of squares  Formula is an = n^2
2. Arithmetic series with common difference d = -2.
an = a1 + (n-1)d  = 3 -2(n-1)
Cant see the rule for Number 3
        
             
        
        
        
Answer:
Step-by-step explanation:
2 hours × 60 km/hour = 120 km
390-120  = 270 km remaining
270 km/(3 hours) = 90 km/hour
 
        
             
        
        
        
Answer:
8 meters
Step-by-step explanation:
56 / 7 = 8
 
        
             
        
        
        
Answer: Your Answer Is 1/5 OR 0.2  (BOTH ARE CORRECT)  (:
Step-by-step explanation:
(1/3) (3/5) =
1 3 / 3 5 =
3/15 = 
1/5 OR 0.2  Hope I Helped!!! (:
 
        
                    
             
        
        
        
The angles of a triangle add up to 180 degrees 
180 - 80 = 100
Both of the unknown angles are the same. So...
100/2= 50
X = 50 degrees