So to sum up - lots of great advice here. I’m 
on board with “everyone needs a strong math foundation.”
D24 has some challenges that are unique to her and some that are common with kids who had one full year of virtual high school.
A 190 point spread, when there hadn’t been much of a spread at all through 7th grade, says to me that something is going on beyond “not everyone is a math genius.”
Thanks, all, for your thoughts and feedback.