Complex sentence: The district, on Philadelphia's Main Line, is one of Pennsylvania's richest school systems, with a $193 million budget and spending $21,600 per student in 2008--09, the most in the Philadelphia region.
Split into simpler sentences: The district, on Philadelphia's Main Line, is one of Pennsylvania's richest school systems. It had a $193 million budget and spent $21,600 per student in 2008--09, the most in the Philadelphia region.