Answer: 
 The length of Ms. Ford's kitchen is 57.5 feet.
Explanation:
 1. You have the following information given in the problem above:
 - The kitchen is rectangular.
 - Ms. Ford wants to buy 5 extra feet of wallpaper border.
 - She buys a total of 62.5 feet of wallpaper border.
 2. Therefore, to calculate the length of Ms. Ford's kitchen, you only need to substract 62.5 feet and the 5 extra feet of wallpaper border. Therefore, the result is:
 
