Final answer:
The final price of the box of granola bars after a 10% discount is $4.05.
Step-by-step explanation:
To find the final price of the box of nut-free granola bars after a 10% discount, we need to subtract the discount amount from the original price. The original price of the box of granola bars is $4.50. To calculate the discount amount, we multiply the original price by the discount percentage: $4.50 * 10% = $0.45.
Next, we subtract the discount amount from the original price to find the final price: $4.50 - $0.45 = $4.05.
Therefore, the final price of the box of granola bars after a 10% discount is $4.05.