Which of the following is not an advantage of a price based system

Tanya was used to using word, and she did some work for her brother mike, who was using wordperfect. tanya was quickly able to use wordperfect for windows with little difficulty, since many of the commands for it were the same as the commands for word. tanya's ability to use wordperfect best illustrates:

Who was the first female secretary of state?

What is a basic principle of the declaration of independence