CREATE TABLE table_73155 ("School" TEXT, "City / Town" TEXT, "Website" TEXT, "Size" FLOAT, "Principal" TEXT, "Grades" TEXT, "IDOE Profile" TEXT)

Where's the school that Mark Fletcher is the principal of?
SELECT "City / Town" FROM table_73155 WHERE "Principal" = 'Mark Fletcher'
SELECT "City / Town" FROM "table_73155" WHERE "Principal" = 'Mark Fletcher'