Percentages
All swimsuits were marked down 60%.
Let's assume the original price was x.
The discount of 60% can be calculated as:
60*x/100 = 0.6x
The discount on a specific rack of swimsuits runs from $18 to $27
If the savings are $18, then
0.6x = 18
Divide by 0.6:
x = 18/0.6 = 30
If the discount is $18, the original price was $30
Now for the discount of $27:
0.6x = 27
Dividing by 0.6:
x = 27/0.6 = 45
If the discount is $27, the original price was $45
Answer: The range of the original price was from $30 to $45