Show clear work to solve each exponential decay and growth problems below. 1. The population of Collinsville is increasing at a rate of 1.5% per year. If the population is currently 28,000 people, then how many will there be in 10 years? 2. Adamantium is highly radioactive. Its mass decreases by 12% every hour. How much of a 160 lb sample will be left after 2 days? 3. An area in North Carolina known as the Triangle is principally composed of the cities of Durham, Raleigh, and Chapel Hill. The Triangle had a population of 700,000 in 1990. If the average yearly rate growth is 5.9%, what would you expect the population to be in 2014? 4. Determine the amount of money in an account if you deposited $1000 in the year 2020 and earned 6% interest per year for the next 15 years