Step-by-step explanation:
let say he sold 5 bagels then he would sell 5 bagels 
12-5=7 , b=7
replace in 12-5=7
b=12-s
 
        
             
        
        
        
It is the slant side of the triangle its the longest side or in other words it forms a 90 degree angle the side thats going from top to bottom is you hypotenuse
        
             
        
        
        
The answer would be (A) 14.47 gallons. Hope this helps!
        
             
        
        
        
You can write down 22 names but them in a box and there is a 1 out of 22 percent chance that each player will pick once