In the algebraic expressionx²-1/1-2x+x²,what factor is common to both numerator and denominator​

What kind of bond pays interest which is exempt from tax?

If my mom gets $13.05 an hour, and she works from 3: 30 to 10: 45 in the morning, how much money does my mom make?

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?