1. A merchant buys a product for \( \$ 12.20 \) and then marks it up \( 35 \% \) to sell it. What is the selling price of the item?

To find the selling price of the item, we first calculate the amount of the markup. The markup is \( 35\% \) of the purchase price of \( \$ 12.20 \), which can be calculated as: \[ \text{Markup} = 0.35 \times 12.20 = 4.27 \] Now, we can find the selling price by adding the markup to the original purchase price: \[ \text{Selling Price} = 12.20 + 4.27 = 16.47 \] Thus, the selling price of the item is \( \$ 16.47 \).