You use 4 gallons of water on 30 plants in your garden. At that rate, how much water will it take to water 45 plants?
gallons

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

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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?