The bottom of a 13-foot straight ladder is set into the ground 2.5 feet away from a wall. When the top of the ladder is leaned against the wall, what is the distance above the ground it will reach? Round to the nearest tenth.

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

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