Meno…
it varies by institution. I just took a quick glance at the University of New Haven website (SIL is teaching a course there this summer)
“Mathematics (B.S.) (B.A.)”
There are math majors available with both degrees.
Many colleges who specialize in training teachers offer BA degrees in math.
I took a look at the on line catalog of Mt. Saint Mary College in Newburgh, as I know a non-Jewish professor there.
They offer a BA in Biology, a BA in Chemistry, a BA in Mathmatics, etc. They consider themselves to be primarily a Liberal arts college and most of their non Nursing degrees are BAs, even in what many consider sciences.
It’s a strange world out there…don’t assume things should be done in a logical manner.