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Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?

How do i i solve this equation? -18 = x/3 + 3