Final answer:
After calculating a 12% discount on the original price of $75.99 for a scooter and adding an 8.5% sales tax, the total cost comes to $72.55. This total cost does not match any of the provided answer choices, suggesting an issue with the options given.
Step-by-step explanation:
David wants to buy a scooter that is originally priced at $75.99, but with a discount of 12%. To find the discounted price, we must first calculate the discount amount. To do this, we convert 12% to a decimal by dividing by 100, which gives us 0.12, and then multiply it by the original price:
$75.99 × 0.12 = $9.12 (discount amount)
Now, we subtract this discount amount from the original price:
$75.99 - $9.12 = $66.87 (discounted price)
Next, we need to include the sales tax, which is 8.5%. Again, we convert the percentage to a decimal (8.5% becomes 0.085) and multiply by the discounted price to find the tax amount:
$66.87 × 0.085 = $5.68 (sales tax)
Finally, we add this sales tax to the discounted price to find the total cost:
$66.87 + $5.68 = $72.55 (total cost with tax)
This is not one of the answer choices provided, which indicates that the options may be incorrect or that the calculation needs to be carefully rechecked.