Select all correct answers: the following items are examples of "artifacts":

1.an ancient native american spear found at a dig site

2.a leaf preserved in stone

3.the skull of the kennewick man

4.a piece of pottery found at the ozette dig site

Explanation:

The definition of artifact is an object made by a human being, typically an item of cultural or historical interest. Thus, an artifact must be made by a human being to be qualified to be an artifact.  So, I believe the first: An ancient Native American spear found at a dig site and fourth: A piece of pottery found at the Ozette Dig site, are the best answers that fit the definition of artifact.

I hope this helps :)

for this case we have the following equation:

we apply distributive property to the terms within parentheses.

subtracting 2 on both sides of the equation:

answer: an oligarchy is a political system in which the government is run by a group of noble families, or the elite wealthy members of a society. a present day oligarchic government is iran.

explanation: