Astore sells boxes of juice in equal-size packs. garth bought 18 boxes, rico bought 36 boxes, and mai bought 45 boxes. what is the greatest number of boxes in each pack? how many packs did each person buy if each box contained the greatest number of boxes possible?

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?