Jessica is deciding on her schedule for next semester. She must take each of the following classes: English 101, Spanish 102, Bi
ology 102, and College Algebra. If there are 15 sections of English 101, 9 sections of Spanish 102, 11 sections of Biology 102, and 15 sections of College Algebra, how many different possible schedules are there for Jessica to choose from? Assume there are no time conflicts between the different classes.
