Answer:
C
Step-by-step explanation:
a proportional relationship is when you multiply the x bye a number to get the y. but it has to work every time
in c as you can tell 1.5 times2 =3 and 2.5 times 2=5. if we keep going down the table, that formula works every time
You can check it like this
FORMULA:
(x)*any number=y
true or false
