A coach needs to choose 2 players from the soccer team to be captain and co-captain. If there are 20 players on the team, how many ways can he assign the roles?

Aubrey read 29 books and eli read 52 books what number is equal to the number of books aubrey read?

The table shows the number of students who signed up for different after school activities. activity students cooking 9 chess 4 photography 8 robotics 11 select the true statements about the information in the table.

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer