Attached is the instructions please complete part A and part B , you can type it in a word document.2:43 1

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uirections in ruri e for your peer repues.

Part A) Solve one of the four world population problems

and explain your process using the following: The growth

of the world population can be described by the equation

A = Aoe” where t is measured in years, Ao is the

population of the world at the time t = 0, and r is the annual

growth rate, and A is the population at time t.

1) In 1960, the world population was about three billion

people and the growth rate was 2.1% per year. At that rate,

how long would it have to take for the population to

increase to seven billion?

2) At a growth rate of 2.1% per year, how long would it

take a population to double?

3) By 2009, the world population was about seven billion,

and the growth rate had slowed to 1.3%.

At that rate, how long would it take for the population to

increase to nine billion?

4) At a growth rate of 1.3% per year, how long would it

take a population to double?

Part B) Research more specific populations by country

using this website: http://worldpopulationreview.com/.

State the population change from 2018 to 2019 as a number

and percent. Has this population increased or decreased?

Why has there been a change? Does the change surprise

you? What was the most interesting topic to you on this

website?

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