You and two friends got jobs at stores in the mall. you earn $117.60 for 14 hours of work. ty earns $148.50 in 18hours. kim earns $137.60 in 1616 hours. who has the highest pay rate in dollars per hour?

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?