LO.3 Jamari Peters (Social Security number 123-45-6789) conducts a business with the following results in 2019: Revenue $20,000 Depreciation on car 3,960 Operating expenses of car|| 3,100 Rent 6,000 Wages 8,200 Amortization of intangibles Jamari estimates that due to a depressed real estate market, the value of land owned by the business declined by $5,200. a. Calculate the effect of Jamari's business on his AGI. b. How would your answer in part (a) change if the activity was a hobby? 680