Can someone pls me with question 21

Abank gives 6.5% interest per year. what is the growth factor b in this situation?

43lbs of tomatos cost $387. how much would 41lbs cost

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?