Biochemistry and Botany generally are not acceptable courses to fulfill the Biology requirement. If you place out of Math 115, you may take Math 120, Statistics, or Computer Science to satisfy the additional math requirement. Statistics courses of particular interest to premedical students include Stat 101a-106a and Psyc 200. Some schools may insist on one full year of calculus. Be sure to check Medical School Admission Requirements as well as the medical school web pages for each school's particular requirements.
Many medical schools prefer at least one writing course.