Answer:
f(3) = 10
Step-by-step explanation:
f(x)=-x^2+19
Let x= 3
f(x)=- (3)^2+19
     = -9 + 19
     = 10
 
        
                    
             
        
        
        
Answer:
7/8
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
30%
Step-by-step explanation:
There's 100 squares in total, and 30 of the 100 are shaded! 30/100 is .3 and multiplied by 100 gives you the percentage, 30.
 
        
             
        
        
        
Answer:
Not rlly sure, might be x=4/5y??? i dont know
 
        
             
        
        
        
Answer is 9r 
Because 9x3 is 27 
Also no clue about the brainliest thing