Samantha quit her job teaching art at the high school and is now an artist who operates her studio and gallery in town. She produces watercolor paintings in the studio and sells them in the gallery. Last year at the high school she was paid a salary of $25,000. In the operation of her small business, she spent $30,000 on supplies, $15,000 on utilities, $12,000 on rent and her equipment depreciated by $3,000. How much revenue must Samantha receive so that she doesn't regret quitting her job as a high school art teacher?

(Hint: considering economic profits).