Ellen plans to leave an 18 percent tip with her $23.75 lunch bill. Which of these expressions could she use to
determine her total bill? Check all that apply.
(1.18)(23.75)
23.75 - [(0.18)(23.75)]
23.75 + [(0.18)(23.75)]
(0.18)(23.75)
4) Intro
Done
LE

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

What is the equation of a vertical line passing through the point (−5, −1)? y = −5 y = −1 x = −5 x = −1

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?