Jamari operates a business with the following results in 2022: Revenue $20,000 Depreciation on car 3,960 Operating expenses of car 3,100 Rent 6,000 Wages 8,200 Amortization of intangibles 680 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. Jamari's business has ( of s which is reported on his tax return. b. How would your answer in part (a) change if the activity was a hobby? If the activity was a hobby, Jamari will report s as income. Of his expenses, are deductible on his tax return.