Question

S is the set of current U.S. Senators from states that begin with A

Write each set using the roster method. Pay attention to repeated elements and think about why you don't need to list the same element more than once.

The List of Senators is below:
John Boozman
Doug Jones
Martha McSally
Lisa Murkowski
Tom Cotton
Richard C. Shelby
Kyrsten Sinema
Dan Sullivan

Answer 1

see below

Explanation:

The "roster method" means you simply list them all:

{John Boozman, Doug Jones, Martha McSally, Lisa Murkowski, Tom Cotton, Richard C. Shelby, Kyrsten Sinema, Dan Sullivan}

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There are no senators from these states with the same name, so repeated elements is not an issue here.