An Italian restaurant earns $600 every weekday and twice as much on the weekend. How much money does it earn by the end of the month?
Let's think: On weekdays it earns $600 / weekday * 5 weekdays = $3000. During the weekend it earns twice as much each day so it makes ($600 * 2) / weekend day * 2 weekend days = $2400. Every week it earns $3000 + $2400 = $5400. By the end of the month, it earns $5400 / week * 4 weeks = $21600.. The answer is: 21600.

Michael loves to paint and sells his creations. He charges $100 for a large painting and $80 for a small painting. At his last art show, he sold 5 large paintings and 8 small paintings. How much did he earn in all?
Let's think: He earned 5 x $100 = $500 for the large painting. And he earned 8 x $80 = $640 for the small paintings. Therefore, he earned a total of $500 + $640 = $1140 in all.. The answer is: 1140.

Bert fills out the daily crossword puzzle in the newspaper every day. He uses up a pencil to fill out the puzzles every two weeks. On average, it takes him 1050 words to use up a pencil. How many words are in each crossword puzzle on average?
Let's think: At 7 days a week, it takes Bert 2 * 7 = 14 days of daily crossword puzzles to use up a pencil. Since Bert does one puzzle a day, each crossword puzzle has 1050 / 14 = 75 words.. The answer is: 75.

Max attended 40 college courses in 2 years. Sid attended four times as many college courses as Max in the same period. What's the total of college courses they both attended?
Let's think:
If Sid attended four times as many college courses as Max, he attended 4 * 40 = 160 college courses. The total of college courses they both attended is 160 + 40 = 200.. The answer is: 200.