Cynthia is making a budget. She makes a monthly net income of $2,300; plus, she earns an additional $640 each month for providing weekend child care. She lists her dedicated expenses.

An employee working 40 hours per week earns a salary of $600 per week but gets a second job offer to work 40 hours per week, hourly at $20 an hour. Which position generates the most income and how much more does that position make? Show your work or explain how you got your answer.

Joshua Smith's income was $56,500. Compare his taxes due if he files as single to the amount due if he files as head of household. Show your work or explain how you got your answer.