Final answer:
To find the total bill including tax for 3 outfits costing $145.00 with a 7% sales tax, calculate the tax by multiplying the total cost by the tax rate, which is $10.15. Add this to the original cost for a total bill of $155.15.
Step-by-step explanation:
The question requires us to calculate the total bill including sales tax for purchasing 3 outfits for a total of $145.00, with the sales tax in Georgia being 7%. To calculate the sales tax, we first convert the percentage to a decimal. In this case, 7% becomes 0.07. Then, we multiply the decimal by the total cost of the items to find the sales tax amount.
Using the formula:
- Sales Tax = Total Cost of Items × Sales Tax Rate
- Sales Tax = $145.00 × 0.07
- Sales Tax = $10.15
Next, we add this sales tax amount to the original total to find the total bill including tax:
- Total Bill = Total Cost of Items + Sales Tax
- Total Bill = $145.00 + $10.15
- Total Bill = $155.15
Therefore, the correct answer to the question is option c) $155.15.