What is the length of the missing side for the polygon on the right if it has a perimeter of 32 inches

W-16=-12 solve each one step equation plz

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?

Def rotates 90 clockwise about point a to create d’ e’ f’. therefore, which equation must be true ?