For every 37,000 students who take the ACT, a national assessment used to screen college applicants, there’s a genius like Will Gao of Copley or Leah Weisburn of Bath Township.The two scored a perfect 36 before entering their junior year of high school, something accomplished by only 42 of the more than 1.5 million students who have taken the ACT so far this year.Gao, 15, attends Copley High School.