A swimming pool with 1600 gallons of water is emptied at a rate of 300 gallons every 2 hours.
Enter an equation in the form y = mx +b that represents the
amount of water (y), in gallons, remaining in the pool after x hours. Please help

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?