sentences:  The school colors are derived from the mountain laurel and are forest green and purple.Tuition in San Marcos Academy for the 2009–2010 school year is $25,511 for boarding students ($27,511 for international students) and $7,996 for day students grades 9–12 and $7,565 for day students in grades 7 and 8, not including optional and mandatory fees.The academy offers need-based financial aid.