Answer:
$11.70 || $19.50 || $28.86 || $50.70
The price is 0.78P or 78% of the original price.
Explanation:
The cost of the shoes is equal to 0.75P (price)
To add 4% sales tax you multiply 0.75 *0.04 = 0.03
Add the sales tax to the discounted price, 0.75 + 0.03 = 0.78
The price is 0.78P or 78% of the original price.