Ellie has been working for an engineering firm and earning an annual salary of $80,000. she decides to open her own engineering business. her annual expenses will include $15,000 for office rent, $3,000 for equipment rental, $1,000 for supplies, $1,200 for utilities, and a $35,000 salary for a secretary/bookkeeper. ellie will cover her start-up expenses by cashing in a $20,000 certificate of deposit on which she was earning annual interest of $500. refer to scenario 13-9. ellie's annual economic costs will equal