Semester units at UC, according to http://admission.universityofcalifornia.edu/counselors/exam-credit/ap-credits/index.html (8 quarter units = 5.3 semester units, 4 quarter units = 2.7 semester units):
5.3 European history - 4
5.3 US History - 5
2.7 Calculus AB - 5
2.7 Statistics - 4
2.7 Environmental Science - 4
It looks like the only subject credit you may get as an applied math major is:
5 on calculus AB = Math 1A
5 on US history = American history and institutions requirement