Steve makes 40000$ a year as a teacher. He loses 20 percent to taxes, 10 percent to healthcare, and 800$ to local union dues. How much money does Steve take home?
Let's think: Taxes:40000(.20) = 8000$. Healthcare:40000(.10) = 4000$. Dues:800$. Total:40000 - 8000 - 4000 - 800 = 27,200$.. The answer is: 27200.

Harry is counting the hours that he sleeps. On Monday night, he sleeps for 8 hours. On Tuesday night, he sleeps for 7 hours. On Wednesday night, he sleeps for 8 hours. On Thursday night, he sleeps for 10 hours. On Friday night he sleeps for 7 hours. What is the average number of hours that Harry sleeps in one night?
Let's think: Across Monday through Friday, the total number of hours Harry sleeps is 8 + 7 + 8 + 10 + 7 = 40 hours. The total number of days from Monday through Friday is 5 days. The average number of hours Harry sleeps in one night is 40 / 5 = 8 hours.. The answer is: 8.

James buys 10 shirts and half as many pants. The shirts cost $6 each and the pants cost $8 each. How much did everything cost?
Let's think: He bought 10 / 2 = 5 pants. The shirts cost a total of 10 * 6 = $60. The pants cost 8 * 5 = $40. So the total cost was 60 + 40 = $100.. The answer is: 100.

The sum of Mario and Maria's ages now is 7. Mario is 1 year older than Maria. How old is Mario?
Let's think:
If x is Maria's age, then Mario's age is x + 1. The equation that represents the sum of their ages is x + x + 1 = 7. By combining like terms, the equation becomes 2x = 6. Hence, the value of x which represents the age of Maria is 6 / 2 = 3. So Mariu is 3 + 1 = 4 years old.. The answer is: 4.