Determine if the set is well defined or not well defined.
The set of U. S. cities

Well-defined

Step-by-step explanation:

Because it clearly refers to the cities in the U.S.

stops on an even number.

i think there was a typo. you wrote pat brings 3 quarts of ice-cream to the party. each serving of ice-cream is 1 6 quart. how many total servings of ice-cream does pat bring to the party? i think the bold is supposed to be 1/6. so 1 quart of ice cream = 6 servings. 6 * 3 = 18.