The exhaust system is low grade stainless, so lasts years, unfortunately the hangers are made of mild steel, so rust of in time.
You can buy clamp on replacements, or have an exhaust fabricator weld some in.
The CV boot has likely split, so needs replacing.
These noobs, come in here and treat it like a doss house.
Get their mum to do all their washing, dad to fix their car... then just piss off down the pub with their mates, leave mess everywhere and their room in a right state.