One cup of yogurt has 1/3 of the amount of calcium needed each day and 230.3 calories. one slice of cheese has 1/6 of the daily amount of calcium and 85.74 calories. amy wants to get all the calcium she needs for less than 600 calories from yogurt and cheese. how much of each can she eat?

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?