Answer:
Haga
Explanation:
The sentences are in second person singular, however the second one is in imperative form. Imperative sentences imply the giving of a command and have a different conjugation. So we have the verb "hacer" (to make or to do), and we must conjugate in second person singular imperative form. However, since the first person used the formal "usted", we must use the "usted" conjugation, which is "haga". Had the first sentence used "tú" instead, we would use "haz".
