ALGEBRA: During its Black Friday Sale from 6:00 AM to 10:00 AM, Millie's Market has all dresses 70%. At the end
of the sale, Millie Markeson must reprice the dresses to a different sale price of only 20% off.
a) What is the regular selling price of a dress that is marked down to $29.70?
b) What is the sale price of the dress after 10:00 AM?