E.TO MAKE THIS PROBLEM EASIER, ASSUME THE INITIAL COST OF THE JACKE...

7. e.To make this problem easier, assume the initial cost of the jacket was $100. The first markdown of20% would save you $20, bringing the cost of the jacket to $80. For the second markdown, you shouldbe finding 20% of $80, the new cost of the jacket. 20% of 80 = 0.20 ×80 = 16. If you save $16 the sec-ond time, the final cost of the jacket is 80 – 16 = $64. Since the initial cost was $100, $64 is 64% of thisprice.