19. Interest Problem Bob plans to put his birthday money into an account and leave it in there for 3 years while he goes off to boarding school. He receives $1,290 in birthday money and he puts it in an account that earns 4.25%. How much money will Bob have in his account at the end of three years if it is compounded Monthly?
22. Growth and Decay Problem C= Initial Amount K= Growth (+)/ Decay (-) T= Time A group of ants build a new ant hill to lay their eggs. Their initial population is 27 ants. If their population grows at a rate of 18% every 24 hours, what will their population be after 3 days?