An artist is weaving a rectangular wall hanging. the wall hanging is already 18 inches long, and the artist plans to weave an additional 2 inches each day. the finished wall hanging will be 60 inches long. how many days will it take the artist to finish the wall hanging?

The first thing to do in this case is to find the number of inches of wall hanging that the artist needs to weave.
 We have then
 60-18 = 42 inches
 Then, as each day the artist can weave two inches, then the number of days will
 n = (42) / (2) = 21 days
 answer
 it will take 21 days the artist to finish the hanging wall

The answer would be 484