Final answer:
To find the cost of the popcorn, we need to subtract the cost of the drinks from the total amount spent by Joe. However, the question does not provide the cost of the drinks, so we cannot calculate the exact cost of the popcorn.
Step-by-step explanation:
To find the cost of the popcorn, we need to subtract the cost of the drinks from the total amount spent by Joe. He spent $37 and bought 6 drinks, so we need to determine the cost of the drinks. Since we don't have that information, we cannot calculate the exact cost of the popcorn.