4. Mary wants to start saving for college. She is 8 years old. She saves $500 at an investment account that pays and interest of 10% annually. Write an equation that models this situation. How much money will she have when she is 18 years old?

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?