Hey Roya1flush,
Ill try to answer this mathematically
You would have to call 18$ for a chance to win 72$. Thats 1:4 pot odds. You have around 13-14% equity since you are only winning this hand if you hit a set.
If 14% of the time you win 72$ and 86% of the time you are losing 18$ then:
10,08 -
15,48 =
- 5,30$
So you lose ~5$ everytime you call here.
Best regards,
SoyCD