Hello! Can anyone please help me? The topic is angles.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

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

Solve for b. ab + c= d b= a + old ob=allc-ch b= (d-c/a