Answer: If Mya has a promo code for 25% off, she will pay:
$72 - (25% of $72) = $54
This means that the price of the purse will be reduced by $18.
Since she also gets free shipping, the total cost of the purse will be $54.
Now, to calculate the sales tax, we need to find 5.5% of $54:
5.5% of $54 = (5.5/100) x $54 = $2.97
Therefore, the total cost that Mya will pay for the purse, including the sales tax, will be:
$54 + $2.97 = $56.97
So Mya will pay $56.97 in total for the purse.
Explanation: