Question

how did the inca use the quipu system in their administration? (1 point)
as a record keeping system to track economic information
as a weapon to enforce kingdom laws
as a writing system about rulers
as a costume for priest rituals

Explanation:

The quipu was a series of colored strings with knots used by the Inca for record - keeping, often related to economic information like inventories, taxes, etc. It was not a weapon, writing system about rulers, or costume for priest rituals.

Answer:

As a record keeping system to track economic information