Sorry three questions but will give best answer brainliest. You buy a winter jacket on sale for 40% off. You pay $54 for the jacket. What was the original cost? Show your work.

In December, the average number of daily shoppers at North Point Mall in 2007 was 1600. This number shrank to 1000 daily shoppers by December 2014. What is the exact percent decrease in the average number of daily shoppers?Show your work

A few days before the big math exam, the local store marks up all of their graphing calculators by 120%. If the price of a particular graphing calculator was $95 prior to the markup, how much would it then cost once its price was raised? Show your work.