An earthquake wave travels through 55 km of rock in 25 seconds. Which equation represents the relationship between t, the number of seconds, and d, the total distance the wave travels?

d = 511t

d = 147t

d = 2.2t

d = 80t

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.