Asurvey of 8000 randomly selected customer care employees in a call center found that 4500 of them used emails to remind clients of upcoming bill payments. if there were 20,000 employees, approximately how many of them used emails to remind clients of upcoming bill payments.

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.