(2x-a) (2x+a) solve this

What are the main functions of the human skeleton? a exchange of gases b support and movement c sensing the environment d digestion and excretion

What happens when two galaxies approach each other? a. they form a black hole. b. they merge because of the strong gravitational pull they exert on each other. c. they shred each other into smaller galaxies. d. they form a supernova. e. they repel each other away because of their strong gravitational pull.

What kind of table is a pasted word table that can be edited with word from within powerpoint without changing the data in your source file? a. linked b. inserted c. embedded d. integrated