The answer is .6 repeating.
        
             
        
        
        
Answer:
x = ± 
Step-by-step explanation:
Given
x² - 7 = 0 ( add 7 to both sides )
x² = 7 ( take the square root of both sides )
x = ± 
 
        
             
        
        
        
Answer:
12 windows
When there are arrays, you always do multiplication.
4 windows x 3 rows = 12 windows.
Hope it helps!