The graph below shows the total cost for lunch, c, when Joe Arva and his friends buy a large salad to share and several slices of pizza, p. a. Estimate the “y-intercept” for a line drawn through the data?b. Describe the pattern in words:c. For each additional slice of pizza that is purchased, how much does the total cost of lunch increase?

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?