a) (9 marks) The enrollment at Vincent Mary School of Science and Technology (VMS) is predicted to increase at the rate of 9% per year. If the enrollment for year 2020 was 44 students, find the predicted enrollment for year 2024. After how many years the enrollment is expected to increase 9-fold? Show the solution steps in sufcient detail. b) (9 marks) Suppose the Covid-19 coronavirus has a half-life of 2 hours on a copper surface. This means that if 4 million coronaviruses are deposited on a copper surface at a specific time. then only half remain 2 hours later. if at a particular moment there are 9 million coronaviruses on a copper surface, how many would remain 7 hours later? Show the solution steps in sufficient detail