Explain simply why 20800 is the correct answer to: Jame gets a raise to $20 per hour and works 40 hours a week. His old job was $16 an hour for 25 hours per week. How much more money does he make per year in his new job than the old job if he works 52 weeks a year?. Explanation:
He makes 20 * 40 = $800 per week. He used to make 16 * 25 = $400 per week. So his raise was 800 - 400 = $400 per week. So he makes 400 * 52 = $20,800 per year more.