Answer:
The probability of picking this is 2/7
Step-by-step explanation:
I'm pretty sure this is correct, and my reasoning for this is because there is 1 of most of the letters. This my not be correct, so you should probably try asking someone else, too :D!
 
        
                    
             
        
        
        
U=-2b+30
u+b=21 
<span>in slope intercept form this is </span>
<span>u=-b+21 </span>
<span>The same thing for wheels is </span>
<span>2b+u=30 </span>
<span>or </span>
<span>u=-2b+30</span>
        
             
        
        
        
Can you give the things you have to match?