Please help i’ve been here for hours so can someone please tell me what to put here

Can anyone me with 32,33,36,37,and 40.

What describes horizontal cross section of the right rectangle 6m 8m 5m

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?