LO2 1. Calculating marginal tax rates. Piper Wells is single and received the items and amounts of income shown below during 2015, as shown below. Determine the marginal tax rate applicable to each item. Note that if the item is not taxable, the marginal rate is 0. Salary Dividends Gift from mother Child support from ex-husband Interest on savings account Rental property Loan from bank nterest on state govemment bonds 30,000 800 500 3,600 250 900 2,000 300