Final answer:
The total cost of the leaf blower including shipping and handling is $506.25. This was calculated by first converting the percentage to a decimal, then multiplying it by the price to find the additional cost, rounding it, and finally adding it to the original price.
Step-by-step explanation:
Sebastian bought a leaf blower priced at $390.93. To calculate the additional cost for shipping and handling, which is 29 1/2% of the price, we first convert the percentage to a decimal. The percentage in decimal form is 0.295 (29 1/2% equals 29.5%, and 29.5/100 = 0.295). Now, multiply the price of the leaf blower by this decimal to find the shipping and handling cost:
$390.93 × 0.295 = $115.32435
Next, round this amount to the nearest cent:
$115.32435 rounds to $115.32. Finally, add the original price of the leaf blower to this shipping and handling cost to find the total cost:
$390.93 + $115.32 = $506.25
Therefore, the total cost of the leaf blower, including shipping and handling, is $506.25 when rounded to the nearest cent.