The answer is 1/20 or 0.05
        
             
        
        
        
A is 3
B she can pick 2 by 2 
        
                    
             
        
        
        
Area of a triangle is... 1/2 Base x Height The answer is followed by units squared. 
3.15 is half of 6.3. 
3.15 x 3.4 = 10.71 yds squared
        
             
        
        
        
Answer:
254/324 which is about 78.4%
Step-by-step explanation:
found area of entire square to be 18² or 324
found area of 4-quarter circles - which equals one circle with radius of 9
A = 81π which is about 70
subtracted 324 and 70 to get 254
ratio of shaded to unshaded is 254 : 324
 
        
             
        
        
        
Answer:
1. X = 1 - 3y
2. -5/6x + 7/3
Those are the answers to the problems