What fraction is equivalent to –2/3

The circumference of a circle is 5 pi cm. what is the area of the circle?

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums, 28 play drums, 18 play the guitar. what is the probability that the applicant who gets the job plays drums or guitar?