Determine the number of lines of symmetry for the figure

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

The los angels ram scored 26, 30, 48, and 31 pts in their last four games. how many pts do they need to score in super bowl liii in order to have an exact mean average of 35 pts over five games. write and solve and equation. use x to represent the 5th game.

What is the anwers for 9+2x=5x-3-x