Pythagoras Saves the Day
When Harper’s mom takes him to school, she drives 3 km east, then 7 km north. When Salina’s dad takes her to school, he drives 2 km west, then 5 km south. When Harper and Salina walk home, they each travel in a straight line from the school to their respective homes. How much farther does Harper walk to get home than Salina? Express you answer as a decimal to the nearest tenth.