It would be 16 minutes because you would divide 80 by 20 and you get 4 so now you multiply 4 by 4 and you get 16
SO EASY 60 people = 10 minutes in line 240 people = 40 minutes in line
I have no clue but you could ask your teacher to help u with it no jk the answer is -7
So basically what this is trying to tell you is are they mutiples / equal to each other, also a rule. Its A. because 25 x 2 = 50, then 50 x 2 = 100 and so on.
So the answer is A
Hope it helps! :D