What is the area of this figure?

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Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

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?

Asinusoidal function whose frequency is 1/6pi