Final answer:
To find the total loan amount including upgrades and sales tax for the Volkswagen Jetta, add the base price and the upgrade costs to get a subtotal, then calculate the sales tax at 7% and add it to the subtotal. The total loan amount comes to $25,514 when rounded to the nearest whole number.
Step-by-step explanation:
First, we need to calculate the cost of the car including the upgrades.
The base price of the Volkswagen Jetta is $21,345, and the upgrades are an additional $2,500.
Adding these two amounts gives us a subtotal before tax:
$21,345 + $2,500 = $23,845
Next, we must calculate the sales tax to be added. In Georgia, the sales tax rate is 7%.
To find the sales tax amount, we convert the percentage to a decimal by dividing by 100 (7% = 0.07) and then multiply it by the total cost before tax:
Sales tax = $23,845 x 0.07 = $1,669.15
Adding the sales tax to the subtotal gives us the total loan amount including upgrades and tax.
We round this amount to the nearest whole number as requested:
Total loan amount = $23,845 + $1,669.15 = $25,514.15 which rounds to $25,514.