Both documents give readers information about the rules for booking travel.
The first document explains that Incur is "required" for employees who are booking travel. Requiring the employee to use the application makes it a company rule for booking travel. The second document is titled "Guidelines for Using Ground Transportation". It outlines the rules about using ground transportation when traveling without a client. The company wants its employees to use the most economical option so it can save money. In this document it explains what those options are and also what needs to happen if the employee needs to use a private vehicle.
I answered mine with this and got it correct:
Keyword: Complicate
Picture: making things harder than they have to be
1. to is the preposition
2. from is the preposition
3. across is the preposition
To do it by hand with no equipment