Pls help me worth 50 points + brainliest
(i only can give brainliest if 2 PEOPLE answer)

box one
box three
box four
box two is incorrect because 0.80/100 x 400 is 3.2
and we are looking for the common denominator of 320 :)
how do i know the common denominator is 320? it's is 80% of 400!
i hope this helps
Answer:
first box, second box and third box.
Step-by-step explanation:
This is because they shared the same answer which is 320.
hope it helps =)