Answer:
Elizabeth gave away 216 marbles out of a total of 360 marbles.
To find the percentage of marbles that Elizabeth gave away, we can use the formula:
percentage = (part/whole) x 100%
where "part" is the number of marbles Elizabeth gave away, and "whole" is the total number of marbles.
So, plugging in the values we have:
percentage = (216/360) x 100%
percentage = 0.6 x 100%
percentage = 60%
Therefore, Elizabeth gave away 60% of the marbles.