CREATE TABLE table_31405 ("Name" CLOB, "#" FLOAT, "Position" CLOB, "Height" CLOB, "Weight  (  lb.  ) " FLOAT, "Year" CLOB, "Hometown" CLOB, "Previous School" CLOB)

How many hometowns are there when Charis Prep was the previous school?
SELECT COUNT("Hometown") FROM table_31405 WHERE "Previous School" = 'Charis Prep'
SELECT COUNT("Hometown") FROM "table_31405" WHERE "Previous School" = 'Charis Prep'