Price of Jeans = $17
Price of 2 pair = 17 + 17 = $34
There is a 10% discount. Let's find the discount on them and subtract it from the total sale price.
10% means 10/100 = 0.1
Thus, 10% of $34 is:
0.1 * 34 = $3.40
We subtract it:
$34 - $3.40 = $30.60
The cost of 2 pair of jeans with 10% discount = $30.60