A mobile phone plan charges $0.06 per minute for calls during the day and $0.02 per minute for calls during the evening. If the bill for one month was $17.86 and
182 min of evening calls were made, how many daytime minutes were used?

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?