What is the probability of spinning a natural number

What number line represents the solution set for the inequality -1/2 greater than or equal to 4

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?

Acarton of juice contains 64 ounces miss wilson bought six cartons of juice how many ounces of juice did she buy