it is the symbol "≠" or "<" instead of "?"
Ez
This is non-proportional
There are 3 ways to figure out if a table is proportional or not
The one i used in which if u make fractions like 2/24. They should be equal to another fraction taken from your table
2/24 simplified is 1/12 while 8/36 is 2/9.
So
NON-PROPOTIONAL
Six fifths =

.
You can multiply the numerator and denominator by any number to find an equivalent fraction.
Two examples of equivalent fractions would be

and

.
Hope that helped you.
X in this equation is about 4 and a half i know because i used a cacisnatter