Help Suppose you have a $6-off coupon at a fabric store. You buy fabric that costs $8.50 per yard. Write an equation
that models the total amount of money y you pay if you buy x yards of fabric. What is the graph of the equation?

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?