If GDP is expected to increase at a steady rate of 3% per year, how many years would it take for living standards to double

Find the expected net profit of an insurance company on a health-insurance policy if: the probability of a $5000 claim is 20%; the probability of a $1000 claim is 60%; the probability of a $20,000 claim is 10%, and the probability of no claim is 10%. the company charges $4000 for this coverage. interpret your answer.

The green revolution is a scientific breakthrough that improved seeds for basic crops. how did the green revolution impact the supply of basic crops such as wheat and corn? the supply of wheat and corn increased. there was no impact on the supply of basic crops. the supply of basic crops did not change, but the quantity supplied of basic crops increased. the supply of wheat and corn decreased.

Anew 2-lane road is needed in a part of town that is growing. at some point the road will need 4 lanes to handle the anticipated traffic. if the city's optimistic estimate of growth is used, the expansion will be needed in 4 years and has a probability of happening of 40%. for the most likely and pessimistic estimates, the expansion will be needed in 8 and 15 years respectively. the probability of the pessimistic estimate happening is 20%. the expansion will cost $ 4.2 million and the interest rate is 8%. what is the expected pw the expansion will cost?