Complex sentence: On October 23,2007, Chris released his debut album "51/50 Ratchet", which debuted at number 24 on the US "Billboard" 200; and sold 26,000 copies in the first week.
Split into simpler sentences: On October 23,2007, Chris released his debut album, "51/50 Ratchet". The record debuted at number 24 on the US "Billboard" 200; and it sold 26,000 copies in the first week.