Total emissions of carbon dioxide from the burning of fossil fuels have been increasing at about 3% per year(data from 2010 to 2011). If emissions continue to increase at this rate, about how much higher will Total emissions be in 2040 than in 2010? (Round to two decimal places as needed)

The population of an endangered species decreases at a rate of 7% per year. Approximately how long will it take the population to decrease to half of its current size?

The U.S. Energy Information Administration projected that imports of petroleum products in 2005 would be 4.81 quadrillion Btu and would increase by 5.47% each year through 2020.† According to the unrounded model, when will imports exceed 10 quadrillion Btu? (Round your answer for t to two decimal places.) Imports will exceed 10 quadrillion Btu in t = ____  years which will occur in the year ____

Use Table 11-2 to solve the problem.   The requirement for computer server capacity at a particular company is expected to increase at a rate of 15% per year for the next 5 years. If the server capacity is expected to be 1,700 gigabytes in 5 years, how many gigabytes of capacity are there today? Round to the nearest whole gigabyte.         ___GB

China had a population in 2008 of about 1.14 billion people.  The populaton is growing by about 1.34% each year.  If this trend continues, when will China's population reach 1.2 billion.

An investment of $10,000 earns interest at an annual rate of 6.7% compounded continuously. Find the instantaneous rate of change in the amount in the account at the time the amount is equal to $14,907.  Round to the nearest cent. $                     per year.