Practice Test 5

Jane wants to buy a new backpack for next year. The backpack that she has her eye on costs $\$72$. Jane works as a car washer and gets paid $$4$ an hour. If Jane works 3 hours every week, how many weeks of work will it take for her to earn enough money to buy the new backpack?

Janet is fertilizing her flowers with a special mixture. Once the mixture is added to the flower pot the flower's blooms doubles every day and can be modeled by a function F which depends on t days. Before the fertilizer is added to the pot, Janet had three blooms. Write a function that models the number of blooms in t days since the fertilizer was added.