A shirt originally priced at $45 was marked down 15%. After a week, the shirt was marked down another 15% off the sale price. What is the percent of change from the original price to the final sale price? Write as decimal percent.

Ian is in training for a national hot dog eating contest on the 4th of july. on his first day of training, he eats 4 hot dogs. each day, he plans to eat 110% of the number of hot dogs he ate the previous day. write an explicit formula that could be used to find the number of hot dogs ian will eat on any particular day.