Kevin and Conner tracked their exercise last week. Kevin ran 8 times around the school track, 6 times around his neighborhood, and 7 miles on the treadmill. Conner ran 4 times around the school track and nineteen miles on the treadmill. Write and simplify an expression for the total combined distance that Kevin and Conner ran. Show your work. Use t for the distance in miles around their school track and n for the distance in miles around Kevin’s neighborhood.

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