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Exponential growth and decay population Name_______________________ 1) The world population is the total number of living humans on Earth. As of today, it is estimated to be 7,073,000,000 and is increasing at a rate of approximately 1.2% each year. a) Write an exponential equation to find the population after ‘x’ number of years. b) Use your equation to estimate the population in 30 years. 2) The current population in the United States is about 315,000,000 and is increasing at a rate of approximately 0.9% each year. a) Write an exponential equation to find the population after ‘x’ number of years. b) Use your equation to estimate the population in 30 years. 3) Believe it or not - North Dakota was the nation's fastest-growing state in the past year. The U.S. Census Bureau data shows that North Dakota's population grew 2.2%, to 699,628 as the oil boom drew workers to the Bakken fields in the western part of the state. a) Write an exponential equation to find the population after ‘x’ number of years. b) Use your equation to determine the population in 30 years. 4) By contrast the state of Rhode Island’s population is decreasing. Last year the population was 1,052,000 and declined by 0.22%. a) Write an exponential equation to find the population after ‘x’ number of years. b) Use your equation to determine the population in 30 years.