At the beginning of an experiment, there are 1000 bacteria in a certain culture. If the number of bacteria triples every day, how many bacteria will be in the culture after 4 days?

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The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. the front two wheels are six feet apart. what is the number of feet in the path traced by the inside front wheel in one trip around the circle? express your answer in the form "k \pi", where k is an integer.

One integer is 8 times another. if the product is 72, then find the integers