The types of items that cost less than $3.75 per item are Paperbacks and notebooks.
The price of a unit item can be determined by dividing the total price by the number of units sold.
Given that:
Paperbacks sold 3 units for $10.65;
Notebooks sold 4 units for $14.36;
Puzzles sold 3 units for $11.85;
Picture frame sold 4 units for $15.20;
Therefore, from the above calculations, we can conclude that the types of items that cost less than $3.75 per item are Paperbacks and notebooks.
Learn more about calculating the unit price of an item here:
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