A department store purchases screen-printed t-shirts at a cost of $5 per shirt. The store marks up the price 150% and puts them
on the sales floor. Every month that a t-shirt doesn’t sell, the store reduces the selling price by 25%. What is the selling price of a t-shirt after one monthly markdown?
Alright, let's do this! If $25 is one fifth of how much the game system cost then, multiply 25 times 5. And you should get your answer. I hope this helps.