Answer:
The total price, after adding GST, of Ruby's purchase is US$ 97.87
Explanation:
1. Let's review the information provided to us to answer the question correctly:
Price of item 1 without GST = US$ 3.99
Price of item 2 without GST = US$ 58.99
Price of item 3 without GST = US$ 25.99
Goods and Services Tax = 10%
2. What is the total price after adding GST?
We will use the following formula to determine the total value of Ruby's purchase after adding GST, this way:
Total price after adding GST = Price of item 1 * 1.10 + Price of item 2 * 1.10 + Price of item 3 * 1.10
Total price after adding GST = 3.99 * 1.10 + 58.99 * 1.10 + 25.99 * 1.10
Total price after adding GST = 4.39 + 64.89 + 28.59 (Rounding to the next cent)
Total price after adding GST = US$ 97.87