The table shows the amounts Mrs. Alvarez paid during three months.
Which expenses were fixed expenses?
The table shows some expenses Aiden paid for three months.

Which expenses were variable expenses?
The table shows what Ethan and Sofia paid for electricity for five months.

Which statement is true?
A student says, “If an expense is paid every month, then it is always a fixed expense.”
Which statement best explains why the student is incorrect?
The table shows Brianna’s expenses.

Which statement correctly classifies Brianna’s expenses?