Question

what does it mean if your mail is full of bills?
people owe you a lot of money.
you get many letters from abroad.
friends send you many invitations.
you owe a lot of money.

Explanation:

A bill is a request for payment for goods or services provided. If one's mail is full of bills, it means there are multiple requests for payment, indicating that the person owes a lot of money.

Answer:

You owe a lot of money.