You're throwing a pizza party for 25 people and figure that each person will eat 5 slices. You call up the pizza place and learn that each pizza will cost you $ 10.00 and it will be cut into 10 slices. Every 5th pizza is free. How much is the pizza going to cost you?

5.00 I think because 5 multiplied by 5 is 25 so 5.00

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.

since electrons are negative the answer is neagtaive