Convert 247 minutes into the unit of hours.

Find the height of a square pyramid that has the volume of 32 ft.³ and a base lengthof 4 feet

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10

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?