Kendra is choosing bouquets of flowers for table centerpieces. she decides to buy 40 bouquets for $120 because she thinks that price is a better value than 40 bouquets for $2.50 each. explain kendra’s error.

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?