On Monday a dental hygienist cleans teeth of 5 patients by the time she takes her lunch break at noon. On average, she is able to clean the teeth of 9 patients in 4 hours. Write a function to represent the number of patients she sees, y, and the number of hours, x, the hygienist works after lunch on Monday.

Ineed me i stuck and i don’t want to get it wrong

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

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?