A hairstylist charges $15 for an adult haircut at nine dollars for a child haircut she wants to earn at least $360 and cut a maximum of 30 haircut this week. create a system of equations that models the solution

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.

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?

Arectangular yard has area 96 square feet. if the width of the yard is 4 feet less than the length