To win a contest, the number of beans in a jar has to be guessed within 20 of the actual number. If the number of beans
in the jar is 645, which equation can be used to find the minimum and maximum number of beans that will win the
contest, and what is the maximum guess that could win?
Ox-6451-20; maximum guess: 635 beans
Ox-6451-20; maximum guess: 665 beans
Ox-201-645; maximum guess: 635 beans
Ox-201-645; maximum guess: 665 beans