In a research experiment, a population of frogs is increasing according to the law of exponential growth. Initially there are 80 frogs. After 11 months there are 200 frogs.


Q1:What is the rate of growth of the frogs?
A1:?

Q2:If the rate of growth is 7.7% how many months will it take the population to double?
A2:?

Q3:If $10,000 is put in a trust and grows exponentially at a rate of 4.4%, in how many years will there be $100,000.
A3:?

Q4:If $15,000 is put in a trust and grows exponentially. After 20 years the value of the trust is $100,000. Whatis the rate of growth?
A4:?

Q5:The initial amount of a radioactive substance is 320 grams. The substance decays at a rate of 10.6%. After 40 years, how many grams of the substance is present?
A5:?

Q6:In a city, a population of bees is decreasing exponentially. Initially there are 1000 bees. After 40 days there are 800 bees. What is the rate of decline of the bees?
A6:?