Answer: a. p = c/5 - 43        b. 17 people 
Step-by-step explanation:
c= 5p + 215   
A)  a said solve for p so we will solve for p in the equation. 
c= 5p + 215  First   Subtract 215 from both sides 
-215     -215  
c - 215 = 5p Now divide both sides by 5. 
 p = c/5 - 43  
B)  If c is the total cost  of hosting a birthday party then we will input 300 into the equation for c and solve for p. 
 300 = 5p + 215    First subtract 215 from both sides 
-215             -215 
  85 = 5p      Divide both sides by 5 
  p = 17  
This means  17 people can attend the meeting if Allies parents are willing to spend $300. 
 
        
             
        
        
        
You could just use 3.14 or 22/7
        
             
        
        
        
Answer:
Y = -x + 2
Step-by-step explanation:
y = -x + 8
y = 1x + b
10 = 8 + b
b = 2