I thought that it was usually 9-10?
The school offers a maximum of 8 GCSEs, including 2 for combined (double) science (separate sciences are no longer offered). However, 2 subjects can be a certificate instead, e.g. sports science, film studies, engineering, so they would then get 6 GCSEs, plus those.
Comprehensive school, nowhere near to grammars, and so includes the full ability range, with all options open to all.