Final answer:
Abby will spend $270.63 on a TV in California, including the 8.25% sales tax.
Step-by-step explanation:
To calculate how much Abby would spend on a TV in California with a sales tax of 8.25%, you first need to convert the sales tax rate from a percentage into a decimal. To do this, divide the sales tax rate by 100. Thus, 8.25% becomes 0.0825.
Next, multiply the price of the TV by the sales tax rate in decimal form to find the amount of sales tax she will pay. The TV costs $250, so the sales tax is $250 × 0.0825, which equals $20.625.
Finally, add the sales tax to the original price of the TV to find the total cost. So Abby's total cost will be $250 + $20.625, which is $270.63 when rounded to the nearest cent.