1. The problem states that the original price of the necklace was £54 and it is reduced by 8.5% in the sale. 2. To find the sale price, we first calculate the amount of discount using the formula: $$\text{Discount} = \text{Original Price} \times \frac{\text{Discount Rate}}{100}$$ So, $$\text{Discount} = 54 \times \frac{8.5}{100} = 54 \times 0.085 = 4.59$$ 3. Now, subtract the discount from the original price to get the sale price: $$\text{Sale Price} = \text{Original Price} - \text{Discount} = 54 - 4.59 = 49.41$$ 4. Therefore, the sale price of the necklace is £49.41.