Please assist on my accounting homework thank you very much.

Colin , a self - employed consultant , uses a room of his home as a business office . This room represents 10 percent of the home's square* footage . This year , Colin incurred the following expenses in connection with his home ! Home mortgage interest $12 , 980 PROPERTY tax on residence* 2 , 200 Homeowner 's insurance 1 , 475 Utilities 2 , 100 Furnace repairs 300 Colin purchased the home in 2000 for $225, 000. For MACRS depreciation purposes , he allocated $185, 000 to the building and $ 40, 000 to the land . Use Table 7.4. a . If Colin's gross business income exceeded his operating expenses by $75, 000 , compute his net profit for the year . b . If Colin's gross business income exceeded his operating expenses by $1, 800 , compute his net profit for the year . @ Answer is not complete . Complete this question by entering your answers in the tabs below . Required A Required B IF Colin's gross business income exceeded his operating expenses by $ 75, 000, compute his net profit For the year . ( Round your intermediate computations to the nearest whole dollar value ." Net profit $ 72, 62183