The usual price of a suitcase was $100. During a sale, a 13% discount was given. Mr Lee bought the suitcase but had to pay 7% GST on the selling price.

a.) What was the selling price of the suitcase?
b.) How much did Mr Lee pay for the suitcase?

100 * 0.87 = $87

87 * 0.07 = ?

$93.09

To calculate the selling price of the suitcase, we need to first find the price after the discount and then add the GST.

a.) What was the selling price of the suitcase?

Step 1: Calculate the price after the discount.
The discount given on the usual price is 13%.
Discount = (13/100) * $100
Discount = $13

The price after the discount = Usual price - Discount
Price after the discount = $100 - $13
Price after the discount = $87

Step 2: Calculate the selling price including GST.
GST is 7% of the selling price (which is the price after the discount).
GST = (7/100) * $87
GST = $6.09

Selling price of the suitcase = Price after the discount + GST
Selling price of the suitcase = $87 + $6.09
Selling price of the suitcase = $93.09

Therefore, the selling price of the suitcase is $93.09.

b.) How much did Mr Lee pay for the suitcase?

Mr Lee paid the selling price of the suitcase, which is $93.09.

Therefore, Mr Lee paid $93.09 for the suitcase.