Find the value of x so that the ratios 9 : x and 15 : 40 are equivalent.

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

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?

Ineed with the quizzes in apex mathematics ii