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1. Sean lives about 15.5 miles from the airport. Number rounds to 15.5

   when rounded to the nearest tenth is 15.49.

   when we round off this number we have to see the last digit here it is 9 so we have to note whenever the last digit lies between 0-4 we round off it and take the value 0.

   when it lies between 5-9 we take the value 0 and add one number t0 the second last digit. so here it is 9 in place of 9 will take zero and in place of 4, we take 4+1=5. so the answer is 15.49.

   You can find more about round-off : https://brainly.com/question/28128444

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