What is Not True About Formulas Select the correct choice?

A Salesforce Administrator is creating a new user.
What should the Administrator consider when selecting the Username?

At Cloud Kicks, sales reps use discounts on the opportunity record to help win sales on particular products. When an opportunity is won, they then have to manually apply the discount to the related opportunity products. The sales manager has asked if there is a way to automate this time-consuming task.
What should the administrator use to deliver this requirement?

Ursa Major Solar uses two different page layouts for Account records. One page layout reflects the fields related to customer accounts and another page layout includes fields for partner accounts. The administrator has assigned the customer account page layout to sales and support users and the partner account layout to the partner management team.
What should the administrator configure to meet this requirement?