for brainlist answer

box 1
y/x = 5/20 =1/4
y/x = 7/35 = 1/5
this is not proportion y/x is not the same
box 2
y/x = 15/40 = 3/8
y/x = 21/56 = 3/8
y/x = 27/72 = 3/8
this is proportional
y is 3/8 times x
Answer:
box 1
y/x = 5/20 =1/4
y/x = 7/35 = 1/5
this is not proportion y/x is not the same
box 2
y/x = 15/40 = 3/8
y/x = 21/56 = 3/8
y/x = 27/72 = 3/8
this is proportional
y is 3/8 times x
Step-by-step explanation: