Hanoi Foods incurs the following expenditures during the current fiscal year: (1) annual maintenance on its machinery, $8,900; (2) remodeling of offices, $42,000; (3) improvement of the shipping and receiving area, resulting in an increase in productivity, $25,000; and (4) addition of a security system to the manufacturing facility, $35,000. How should Hanoi account for each of these expenditures? Annual maintenance on its machinery Remodeling of offices Improvement of the shipping and receiving area Security system to the manufacturing facility