Answer:(9y-7)(9y+7)
Step-by-step explanation:
81y^2-49
=(9y)^2-(7)^2
=(9y-7)(9y+7)
 
        
             
        
        
        
Answer:
x = 3
Step-by-step explanation:
4 + 12.5 > 11x - 3.5 - 2x
16.5 = 5.5x
16.5/5.5 = x
 
        
             
        
        
        
Answer:
the answer is a.
Step-by-step explanation:
 
        
                    
             
        
        
        
Step-by-step explanation:
logwjqjqjhajqjqjsjwjqjqjqjnqnqnqnqnqnqnqnq
 
        
                    
             
        
        
        
Answer:
D. The population of California was approximately two times the population of Florida.
Step-by-step explanation:
California's population was 4 x 10^7= 40,000,000
Florida's population was 2 x 10^7= 20,000,000
So therefore Califirnia's population was approximately two times the population of Florida.
I hope this helps!!