CREATE TABLE table_204_624 (id DECIMAL, "school" TEXT, "team name" TEXT, "town" TEXT, "county" TEXT, "enrollment  ( 2010-11 & 2011-12 ) " DECIMAL, "primary mshsaa class*" DECIMAL, "football class" DECIMAL)

how many of the schools had at least 500 students enrolled in the 2010-2011 and 2011-2012 season ?
SELECT COUNT("team name") FROM table_204_624 WHERE "enrollment (2010-11 & 2011-12)" >= 500
SELECT COUNT("team name") FROM "table_204_624" WHERE "enrollment (2010-11 & 2011-12)" >= 500