Theo, Mason, and Roxy are siblings. Theo drinks 8 cups of water every day. Mason drinks 7 cups of water. Roxy drinks 9 cups of water every day. In one week, how many cups of water do the siblings drink together? Let's answer step by step:
Everyday, the three siblings drink 8 + 7 + 9 = 24 cups of water. In one week, they drink a total of 24 x 7 = 168 cups of water. The answer: 168.