27. The Business Education Department of Edison High School purchased 24 new typewriters at an expense of $350 each. Accepting that the assessed life of the typewriters is four years, after which they are relied upon to have a removal worth of $75 each, (a) what is the yearly devaluation for every typewriter, utilizing the straight-line strategy (devaluation)? (b) The month-to-month devaluation for each? (c) The yearly pace of devaluation for each during the principal year? (d) The book worth of each toward the finish of the third year