What is 5..31)-10.64 because i don't know

What is the approximate circumference of the circle shown below?

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other

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.