I’ve heard from some teachers that math kids sometimes have problems with geometry and bounce back in trig/algebra2. If it makes sense, I find geometry proofs like pattern matching rather than problem solving.
My S20 took MultiVar/LinearAlg and DifferentialEq in 12th grade at the local CC. It was a pain in the neck since he did not have a drivers licence until late in the year and I was the chauffeur. If you have the classes at high school and the teachers are good, I say go for it.
Colleges are trying to get more girls into the harder/quantitative STEM majors and lots of Math looks good (See CMU’s SCS Male/Female stats). Sorry, but Bio is not a subject where girls are in short supply.