25 points. please help

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

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?

Use the given information to determine the exact trigonometric value.