Seems runs 5 miles more per week than her sister padma if seema runs 17 miles per week, what equation could be used to find the number of miles padma runs each week ?
- needed by tonight plz 2/ 12/ 17 - 9: 09

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?