To find out how many giant candy bars Halle needs to sell, we can set up an inequality. Let's represent the number of giant candy bars as "g" and the number of small candy bars as "s".
The total cost of the small candy bars is $2s, and the total cost of the giant candy bars is $4g. We know that Halle needs to earn at least $60, so we can write the inequality:
2s + 4g ≥ 60
Since Halle wants to sell more than 12 giant candy bars, we can also add the condition:
g > 12
Combining these two conditions, we can find the possible solutions for g.