From his apartment, Kona drives 9 miles to the bakery. From there, he drives 24 miles to his grandmother’s house. From her house, he drives 27 miles straight to his apartment. How many additional miles did Kona drive round trip to the bakery stop, compared to a round trip without the bakery stop? Give the rationale and then the answer.
Let's think step by step. With the bakery stop, Kona drove a total of 9 + 24 + 27 = 60 miles. Without the bakery stop, Kona drove a total of 27 + 27 = 54 miles. With the bakery stop, Kona drives an additional 60 - 54 = 6 miles.. The answer is: 6.

Sydney and Conner are having a three day rock collecting contest to see who can have the largest collection after adding to their existing collections. Before they start, Sydney has 837 rocks and Conner has 723. On day one, Sydney collects 4 rocks and Conner collects 8 times as many. On day two Sydney rests and Conner collects 123. On the third day, Sydney collects twice as many as Conner did on the first day. How many does Conner have to collect on day three to make sure he at least ties Sydney? Give the rationale and then the answer.
Let's think step by step. On day one Conner collects 32 rocks because 8 x 4 = 32. On day three Sydney collects 64 because 32 x 2 = 64. After three days Sydney has 915 rocks because 837 + 0 + 4 + 64 = 905. Before the third day Conner has 878 because 723 + 32 + 123 = 878. Conner needs to collect 37 on day three to tie Sydney because 905 - 878 = 27.. The answer is: 27.

Matthew drinks 4 glasses of water per day. Each glass is 5 ounces. He decides to just buy a 35 ounces water bottle. How many times will he fill it each week? Give the rationale and then the answer.
Let's think step by step. He drinks 20 ounces of water a day because 4 x 5 = 20. The drinks 140 ounces in a week because 7 x 20 = 140. He will fill it up 4 times because 140 / 35 = 4.. The answer is: 4.