A. is obviously the most easiest one, as you just have to fill it up 3 times to get 3 gallons. 
The next one to measure exactly 3 gallons of water is B), because:
1) the 100-gallon barrel is more than 1 gallon, and is much more harder than 3 gallons.
2) Each person's 'palm' can hold different amounts of water, and so it can vary by the size of the palm.
So IF it cannot be (A), then your next choice is (B), as you only need 768 teaspoons for each gallon.
But, you should report this problem to the teacher, since A is obviously the best choice
 
        
             
        
        
        
Answer:
Where is it I don't see it?
Step-by-step explanation:
 
        
             
        
        
        
if you look at delta y over x, you'll notice it always equals 2
i.e (22-2)/10-0 = 20/10 = 2
or (14-2)/6-0 = 12/6 = 2
or even (22-8)/10-3 = 14/7 = 2
This means that m (slope) is 2.
Now as for b. b is the y intercept and that value occurs when x = 0. On the table, when x = 0 y = 2 so b = 2.
y = mx + b becomes
y = 2x + 2
 
        
             
        
        
        
It would be 4 √7 that’s what i got
        
             
        
        
        
Answer:
it is b
Step-by-step explanation: