Six out of the first 10 vehicles that entered a parking lot were cars. based on this information, if five hundred forty vehicles entered the parking lot, how many vehicles could be expected to be cars?

2x minus y equals 6, x plus y equals negative 3

For the inequality |c| < |d| to be true, which of the following must be true?

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?