: At a high school they are getting new chalkboards. The old ones were large and square shaped. THE new ones are rectangular The length of the new white board ise 5 feet longerthan the lenght of the old one. The width of the white board is 3 feet less than the length of the old one. and the area of the new one is one more than twice the old one. FInd the area of the new white board in sq. feet