enter a fraction)) as you can see i’m from an younger audience, i’m not smart as well- please help me out, i’m new to this as well

Diane owes $387 to her brother. if she debits her bank account $161.25 a month to pay him back, how many months will it take her to pay off the debt?

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?

George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2