Which statement best describes the political structure of the ancient Chavíns?

The Chavíns developed city-states that were powerful but independent.
The Chavín civilization included different groups unified under a single religion.
The Chavín civilization was ruled by an emperor and had about four hundred tribute states.
The Chavíns were run by representatives from different city-states.

8 - (2a + 7) = a + 40     distribute/multiply - into (2a + 7)

8 - 2a - 7 = a + 40

1 - 2a = a + 40       add 2a on both sides

1 = 3a + 40         subtract 40 on both sides

-39 = 3a       divide 3 on both sides

-13 = a

[proof]

8 - (2a + 7) = a + 40

8 - (2(-13) + 7) = -13 + 40

8 - (-26 + 7) = 27

8 - (-19) = 27

8 + 19 = 27

27 = 27

the supreme court should use its power to interpret u.s. laws to protect citizens from injustice.

{apex}

the reciting of a song like "twelfth song of thunder" gave the navajo people the chance to come together and enjoy each other's company-