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Answer:Question 3 In 15 minutes, the tortoise walked 400 meters 1 hour ---> 60 minutes 60 minutes is 4 x 15 minutes 4 x 15 // 400 x 4 1 hour // 1600 meters = 1.6 kilometers the tortoise can walk 1.6 Kilometers per hourQuestion 4 2 quart bottle for 2.56$ 1 quart = 32 fluid ounces2 quart = 64 fluid ounces 2.56/64 = 0.04$ per fluid ounce