What is the present value of the following payment stream, discounted at 8% annually: $2,000 at the end of year 1, $3,000 at the end of year 2, and $4,000 at the end of year 3? (Do not round intermediate calculations. Round your answer to 2 decimal places.) Multiple Choice $7,794.80 O $7,599,20 O O $7,799.88 O $7,863.38 What is the marginal tax rate for a corporation with $98,000 taxable income and an average tax rate of 15% if the next-lowest marginal tax rate of 10% covers taxable incomes up to $50,000? Multiple Choice O 16.50% O O 10.00% O 15.00% O 20.21%