Ateacher has a bag of 100 unit cubes. she gives an equal number of cubes to each of the seven groups in her class. she gives each group as many cubes as she can. how many unit cubes are left over?

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.

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?

Two consecutive negative integers have a product of 30. what are the integers?