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Find the balance at the end of 4 years if 1000 is deposited at the rate of

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

It says factor each expression completely 8y+48