Final answer:
To find the total cost of the jacket, calculate the sales tax by multiplying the original price by the sales tax rate and then rounding the result to the nearest cent. Add the sales tax to the original price to get the total cost.
Step-by-step explanation:
To find the total cost of the jacket, we need to calculate the sales tax and add it to the original price. The sales tax can be found by multiplying the original price ($85) by the sales tax rate (7.5%), and then rounding the result to the nearest cent. Using the formula:
Sales Tax = Original Price x Sales Tax Rate
Sales Tax = $85 x 0.075 = $6.375 ≈ $6.38
Adding the sales tax to the original price:
Total Cost = Original Price + Sales Tax
Total Cost = $85 + $6.38 = $91.38