Step-by-step explanation:
8x + 14y = 4 ...1
-6x - 7y = -10 ...2
...2 × 2 in 2 sides of the equation
-12x -14y = -20 ...3
...1 + ...3
8x + 14y +(-12x -14y) = 4 +(-20)
8x + 14y - 12x -14y = 4 - 20
-4x = -16
x = (-16)/(-4)
 = 4
replace x in ...1 or ...2 you will reserve y value
and answer in the term of (x,y)
 
        
             
        
        
        
Answer:
i think the answer is a 
Step-by-step explanation:
a yard = 3 feet 
1 foot * 3 = yard
 
        
                    
             
        
        
        
Answer:
7,9,9
Step-by-step explanation:
Because the numbers are lined up from least to greatest all you have to do is find the middle of all the numbers which is 10. So everything below ten is lower quartile. Everything above is upper quartile
 
        
                    
             
        
        
        
Answer:
yes i think 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
4) (2)(4)(3.14) = 25.12 m
5) (12)(3.14) = 37.68 ft
6) (2)(2)(3.14) = 12.56 yd