A bacteria sample in a lab grows to double its original mass in 3 hours. At what time will it be triple it’s original amount?

A certain substance has a half-life of 20 minutes. A researcher has 20grams of the substance. They plan to use it in 5 minutes. How muchwill be left in 5 minutes?

A population of bacteria grows to twice its original amount in 3 hours. How long will it take to grow to 5 times its original amount? (Round your answer to three decimal places.)

The half-life of Radium-226 is 1590 years. If a sample contains 100 mg, how many mg will remain after 3000 years?

The half-life of Palladium-100 is 4 days. After 20 days a sample of Palladium-100 has been reduced to a mass of 4 mg. What was the initial mass (in mg) of the sample? What is the mass 6 weeks after the start?

The initial population of a town is 3700​, and it grows with a doubling time of 10 years. What will the population be in 12 ​years? What will the population be in 12 ​years?