“College Algebra” is more like what most high schools call “pre-calculus”, a bit more advanced than freshman high school algebra, but yeah, definitely usually a high school level course.
Ok, fair enough. I never had college algebra, in engineering school we went straight to single variable calculus freshman year, with multivariable and diff e-qs sophomore. They expected good knowledge of algebra, trig, and general pre-calculus mathematics going in.