Would u plz try to type it out instead of writing it on paper. It makes it more clear.

7. Write an exponential equation to represent each of the following functions in the form 9 a ' b' + C using the indicated base. (2 marks each) 8. Rewrite the function \"1) = 15: in four different ways, using a different base in each case. (4 marks) 9. $4000 in a mutual fund earns 12% every year. How much will the fund be worth in 20 years? (2 marks) 10. A certain prescription drug diminishes in the A system at a rate of 25% per hour. If a person Q: was administered 1450mg of the drug, how much will remain in 4 hours? How many hours will it take for the amount of the drug in their system to be less than 5mg? (4 marks)