Allison have 100 sheets of paper meeting in her notebook and water has 60 sheets for waiting in his notebook Allison uses for sheets of paper each day and water uses three sheets of paper each day which inequality could be used to determine the number of days Allison will have more sheets of paper than Walter

Can someone check if i did this correct. it’s number 4 if you’re wondering.

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

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?