Final answer:
Avery has a total of 12 marbles.
Step-by-step explanation:
To find out how many marbles Avery has, we need to determine the total number of marbles.
Given that one-sixth of Avery's marbles are blue, and Avery has 2 blue marbles, we can set up the following equation:
2 blue marbles = 1/6 * total number of marbles
To solve for the total number of marbles, we can multiply both sides of the equation by 6:
Total number of marbles = 2 blue marbles * 6 = 12 marbles
Therefore, Avery has a total of 12 marbles.