Danny has 47 baseball cards. He gives his brother 11 cards. Danny then divides the remaining cards between 3 of his classmates. How many cards does each classmate receive?

Two classes of grade three students are lined up outside. One class is lined up in 3 rows of 7. The other class is lined up in 4 rows of 5. How many total third graders are lined up outside?

Jessica earns 10 dollars per hour for babysitting. She has saved 60 dollars so far. How many more hours will she need to babysit to buy something that costs 100 dollars?