Question 1102224
Price is 720, and 20% off is 720*0.80 or 576, the sales price
That is a profit of 20%, so 576 is 1.2 times the cost price
576/1.2=480 ANSWER.
1)
profit is increase/original amount=20%.  That is 96/480 so the selling price is 576.
The discount is taken from the original price as well, and that is 720.