<p dir="ltr"><img src="https://d2vlcm61l7u1fs.cloudfront.net/media%2F958%2F95879202-5d90-42e5-8018-085f0e1dc596%2Fimage" alt="Problem 10-5. A graphics reproduction firm has four units of equipment that are automatic but occasion- ally become inoperative because of the need for supplies, maintenance, or