My brother is starting to make me "mad" only bc EVERY time i pass him or he walkes out of his room i flinch 0-0 its prob bc of trama but I SWEAR! everytime he makes me flinch! 37+3 (i only put that so my question won't get deleted)

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.