Hello, I'm having trouble with this question. I would greatly appreciate any help!

Suppose Ryder's taxable income last year was $85,207. Last year's tax brackets: If your taxable income is: Over: But not of the over: The tax is: amount over: 1st bracket 0 7,000 10% 0 2nd bracket 7,000 28,400 15% 7,000 3'd bracket 28,400 68,800 25% 28,400 4th bracket 68,800 143,500 28% 68,800 5th bracket 143,500 311,950 33% 143,500 6th bracket 311,950 35% 311,950Round all answers at 2 decimal places. a) Calculate how much Ryder paid in taxes for each marginal tax bracket. TOTAL TAX BILL b) Enter Ryder's Tctal Tax Bill in the table above. c) What is Ryder's marginal tax rate? |:|% d) What is Ryder's average (or effective) tax rate? |:|% e) How many months did Ryder have to work to pay his federal income tax bill? Round at 2 decimal places. |:| months