120 people took part in a cross-country ramble one saturday. 144 people took part in the next saturday. on each Saturday, the people were divided into equal groups. the number of people in each group the first saturday was the same as the number of people in each group the second Saturday. what was the lowest possible number of groups on each of the two Saturdays?​

Awrestling tournament begins with 128 competitors. in the first round, each competitor has 1 match against another wrestler. the winner of each match moves on to the next round until there is a winner. write a sequence in which the terms represent the number of players still in the tournament at the end of each round. describe the sequence? how many rounds are in the tournament?

How can you construct perpendicular lines and prove theorems about perpendicular lines

Yesterday, george drank 1 small bottle and 2 large bottles, for a total of 1,372 grams. the day before , he drank 1 small bottle and 1 large bottle, for the total of 858 grams. how many grams does each bottle hold?