3. The City of Santangelo received a $500,000 federal grant to acquire several buses to be used in its public transit system. The city paid $400,000 to acquire several buses. At year-end, $100,000 of the grant had not yet been used. During the year total depreciation on the buses was $40,000. Revenues for the public system were $600,000; operating expenses (other than depreciation) were $470,000. REQUIRED: Assuming the Public Transit Enterprise Fund began the year with unrestricted net assets of $420,000, prepare the following for the Public Transit Enterprise Fund. a) Statement of revenues, expenses, and changes in net position. b) Net position section of the statement of net position.