Vito's Italian Restaurant has incurred the following costs through out the year and needs your help to classify the costs as either fixed or variable with respect to customers served.

Phone bill of $40 per month

Insurance of $200/month on the restaurant

Rent on the restaurant

Tomato sauce used in pasta dishes

Cooking supplies (oil, salt, etc.)

Advertising of the restaurant

Flour used to make fresh pasta

The chef's salary $5,000 per month

Rental of table and chairs at $1,000 per month

The wait-staff's wages (hourly workers)