Please help! I've attached the questions and the requirements below. Any help would be greatly appreciated

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?

Communication comes in various forms. which of the following is considered an old form of communication? a) e-mail b) letter c) skype d) texting

How are credit unions similar to banks