How many years would it take you to eat a billion hamburgers

Sketch one cycle if the cosine function y=2cos2theta

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.

What is the sum of these mixed numbers 4 2/3+ 3 1/9