The measure of p is 40 degrees less than the measure of d and is one half the measure of q. if the sum of the measures of the three angles is at most 140 degrees, what is the greatest possible measure of p?

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?