Final answer:
The total cost of the dress is $32.40. To find the total cost, you need to add the sales tax to the original price. First, calculate the amount of sales tax by multiplying the original price by the sales tax rate. Next, add the sales tax to the original price to find the total cost.
Step-by-step explanation:
The total cost of the dress is $32.40. To find the total cost, you need to add the sales tax to the original price. First, calculate the amount of sales tax by multiplying the original price by the sales tax rate:
Total Sales Tax = $30 x 8% = $2.40
Next, add the sales tax to the original price to find the total cost:
Total Cost = $30 + $2.40 = $32.40