Mrs. habib has 46.25 feet of border for a bulletin board for her classroom. the board is 37.5 feet tall and 8.3 feet wide. how many feet of border will mrs habib have left after she puts border around the board?

Assuming that it is a square board, she would not have enough. This is because there would be twice as much height and twice as much width. Those numbers add up to far more. 

However, if they just have to cover those two sides they will have 0.45 left. You can get this by subtracting the amounts from the overall.

46.25 - 37.5 - 8.3 = 0.45