Final answer:
The student needs to select a reasonable value for x, likely representing the cost of one popcorn, and then evaluate an expression that calculates the total cost for five people buying popcorn.
Step-by-step explanation:
The question involves evaluating an expression that likely pertains to the cost of popcorn for you and your friends at the movies. Although the expression itself is not provided, choosing a reasonable value for x typically means selecting a value that makes sense in the real-world context of the problem. For example, if x represents the cost of one popcorn, then x could be a value like $5.00 if we are assuming a typical price for movie popcorn. Once x is chosen, the expression could be something like 5x to represent the total cost for all five of you buying popcorn.
If x = $5.00 and the expression is 5x, then the evaluation would be 5 * $5.00 = $25.00. This would be the total cost for all five popcorns purchased by you and your friends.