Final answer:
By dividing the total tip amount of $42.60 by three, it is determined that each sandwich maker's share is $14.20, which corresponds to option (a).
Step-by-step explanation:
The question is related to the division of a total sum of money equally among three sandwich makers. To find your share of the $42.60 tip jar, you should divide the total amount of tips by the number of sandwich makers. Since there are three sandwich makers in total, you would perform the following calculation: $42.60 รท 3 = $14.20
Therefore, the correct answer is $14.20, which corresponds to option (a).