To determine the cost for one shirt, you can calculate the unit price by dividing the total cost by the quantity for each entry in the table.
-
For 6 shirts at $18:
Unit price = Total cost / Quantity = 18 / 6 = $3 per shirt -
For 5 shirts at $15:
Unit price = 15 / 5 = $3 per shirt -
For 4 shirts at $12:
Unit price = 12 / 4 = $3 per shirt -
For 3 shirts at $9:
Unit price = 9 / 3 = $3 per shirt
In every case, the cost for one shirt is $3.