Can someone please help

if i'm not mistaken

56. a

57. b

56. people bought soda and popcorn= 15

total people buy soda = 25

15/25 = 0.6

57. people didn't buy soda = 15

total people surveyed = 40

15/40 = 0.375 ( round off to 0.38 )

substitute,

circle 1 = 5

circle 2 = 20

circle 3 = 44

in this case no matter how you add, you will always get a perfect square..

hence proved

happy to

pls mark as brainliest