Answer:
D.$315
Step-by-step explanation:
$450=100%
100%-20%-10%=70%
$450×70%=$450×70/100
 =$315
 
        
                    
             
        
        
        
Answer:
A
Step-by-step explanation:
Well considering how the graph looks, from the x-axis(0,0), the line(x) moves upwards on the left before itf(x) moves downwards on the right
 
        
             
        
        
        
The correct answer it would be B 
Ford
        
             
        
        
        
It’s True because of 5 square is equal to 25 
Than (-5) square is also get the same value as 5^2
        
             
        
        
        
Answer:
No graph so we'll use the quadratic formula
x^2+x-4=0
a = 1
b = 1
c = -4
x = -1 +- sqr root (1^2 - 4 * 1 * -4) / 2
x = (-1 +- sqr root (1 +16) ) / 2
x1 = (-1 + sqr root (17)) / 2
x2 = (-1 - sqr root (17)) / 2
Step-by-step explanation: