Select the correct answer from each drop-down menu. the function below describes the number of students who enrolled at a university, where f(t) represents the number of students and t represents the time in years. f(t)18500(1.03)^t initially, students enroll at the university. every , the number of students who enroll at the university increases by a factor of .

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z