Answer:
y= -3x +7
Step-by-step explanation: calculate for the difference in slope and you already had your y intercept 
 
        
                    
             
        
        
        
Answer:
You forgot to post the image :(
Step-by-step explanation:
 
        
             
        
        
        
Answer:
C) 43.96
Step-by-step explanation:
1. Use the formula to find the circumference of a circle whic is C= πR 
2. First multiply the radius (7 in) by 2 
3. 7 x 2 = 14
4. Then multiply 14 by 3.14 
5. 14 x 3.14 = 43.96
5. There's your answer :) 
Hope this helps :)
 
        
             
        
        
        
Radians = degrees * pi/180 therefore 
120 degrees * pi /180 = 2/3 pi