What is the total cost of 3 items at $5 each?

To find the total cost of 3 items priced at $5 each, you must multiply the number of items by the price of each item. In this scenario, you would calculate:

3 items × $5/item = $15.

This multiplication shows that for each of the 3 items, you spend $5. Adding this value for each individual item gives you the total cost.

Therefore, the correct total cost of the 3 items is indeed $15.