A store sells pencils for $0.50 each. How much would 10 pencils cost?

To determine the total cost of 10 pencils that are sold for $0.50 each, you can multiply the price per pencil by the quantity of pencils you want to purchase. In this case, you would perform the calculation as follows:

[ \text{Total Cost} = \text{Price per Pencil} \times \text{Number of Pencils}

] [ \text{Total Cost} = 0.50 , \text{dollars} \times 10 = 5.00 , \text{dollars} ]

This calculation shows that purchasing 10 pencils at the rate of $0.50 each results in a total cost of $5.00. Therefore, the correct answer is $5.00. This method of multiplying the unit price by the quantity is a fundamental aspect of cost calculation in basic math, ensuring you can accurately determine total expenses in similar scenarios.