In 2018, the world's population rose to 7.2 billion and it is rising with an additional 200,000 people each day. This growth rate is about 1% per year.

1.) Using the exponential model, what is the exponential growth function?

2.) What would be the estimated population in 12 years, year 2030?

3.)At this growth rate, what year will the world's population hit 10 billion people?