The data plot represents the hours student each week in two different classrooms

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

Triangle xyz has vertices x(1,3), y(0,0)

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?