Answer: D 
Step-by-step explanation:
If segment D moves downward it means its function has a negative slope so the line will be  decreasing.  
 
        
             
        
        
        
518-68=450. . . . . . . . . 450/2 = 225 hamburgers
        
             
        
        
        
Answer:
area of figure= area of rectangle+area of semi-circle
area of rectangle= length ×width
5×4
= 20in²
area of semi circle= 1/2πr²
1/2×22/7×2×2
<u>2</u><u>2</u><u>×</u><u>2</u>
 7
<u>4</u><u>4</u>
 7
= 6.29in²
area of figure= 20+6.29
= 26.29in²
 
        
             
        
        
        
Answer:
5
Step-by-step explanation:
k(x)=5 says I'm 5 no matter the value of x...
So therefore
k(-4)=5
k(56)=5
k(66378)=5
k(whatever)=5
k(x) is constantly 5 for whatever input x.