What is the answer I need help I tried 49 time and I said it was wrong help

If the measure of xyz is 81 what is the measure of yz

Combine the information in the problem and the chart using the average balance method to solve the problem.

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.