Q: There are two babysitters named Mila and Agnes. Mila makes $10 an hour while Agnes makes $15 an hour. Agnes works 8 hours each week. How many hours does Mila need to work to earn as much as Agnes in a month?
A: The weekly salary of Agnes is $15 x 8 = $120. So in a month, Agnes earns $120 x 4 = $480. Therefore, Mila needs to work for $480 / $10 = 48 hours to earn as much as Agnes's monthly earnings. The answer is 48.

Q: Shelly makes braided keychains for her friends at school. Each keychain takes 12 inches of thread to braid. This year, she made six friends in classes and half that number from after-school clubs. She wants to make each of them a keychain. How many inches of thread does Shelly need?
A: Shelly made 6 / 2 = 3 friends from after - school clubs. She made 6 + 3 = 9 new friends at school this year. Shelly will need 9 * 12 = 108 inches of thread to make each friend a keychain. The answer is 108.

Q: Kim buys 3 pizzas. They are 12 slices each. The pizza cost $72. How much did 5 slices cost?
A:
he got 3 * 12 = 36 slices. So each slice cost 72 / 36 = $2. So 5 slices would cost 5 * 2 = $10. The answer is 10.