Question

An office manager is renting a local hall for an upcoming event. The hall costs ​$. The food costs ​$ per person. The office manager is not sure how many people will attend. Which quantity is not a variable quantity

Answer 1

This is an example of why some questions go unanswered.
The missing information makes it impossible to answer the question.
Before you hit that Submit button, make sure you have not left anything out, or repeated it unnecessarily.
Proofread your dang question!