WILL GIVE BRANLIEST PLZZ HELP ANSWERING THE 3 QUESTIONS IN FULL

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

Aculture started with 3000 bacteria. after 5 hours it grew to 3900 bacteria. predict how many bacteria will be present after 9 hours

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.