Final answer:
To find the sale price of the sneakers with a 15% discount, calculate the discount amount and subtract it from the original price.
Step-by-step explanation:
To find the sale price of the sneakers, we need to calculate the amount of the discount, subtract it from the original price, and round the result to the nearest cent.
Step 1: Calculate the discount amount by multiplying the original price by the discount rate: $64.99 x 0.15 = $9.75.
Step 2: Subtract the discount amount from the original price: $64.99 - $9.75 = $55.24.
The sale price of the sneakers is $55.24, so the correct answer is 1) $55.24.