Complex sentence: Cardinal High School is a high school located in Middlefield, Ohio, United States and has between 450 and 500 students, of whom 30-50 are special education (currently still referred to as "Learning Deficit") students.
Split into simpler sentences: Cardinal High School is located in Middlefield, Ohio, United States and has between 450 and 500 students. It has between 30 and 50 Special Education (currently still referred to as "Learning Deficit") students.