A hand-held digital music player was marked down by 1/4 of the original price. what difference between the discount price and the price that the store paid for the digital player?
It was marked down 1/4 of the original price to $128. That means $128 is equal to 3/4 of the original price. So the original price would be 4/3 of $128. I get $170.67 (rounded to the nearest cent).