Which of the following statements accurately describes the inca economy?
a. the incas had a market economy in which individuals traded goods and used currency.
b. the incas had a centrally-planned economy centered around the mita.
c. the inca economy was based on a complex system of sharecropping.
d. the incas used slave labor for agriculture and free incas for manufacturing.

b. The Incas had a centrally-planned economy centered around the mita.

Explanation:

The Inca economy system was based on group work within an ayllu, the economy center. The entire society had to work in order to provide for the community. For the Incas, this was equal to paying their taxes.

Tax work was referred to as the mita, and every citizen had to do whatever the society needed from them such as road building or working the fields. In return they wouldn't have to fear for their basic needs - they would all be met and for free (food, clothes, medical help etc.).

d) a week

because the land run of 1889, although not without precedent in the history of the west, further, their men were aboard the first trains, ready to jump off and begin staking their claims. oklahoma city, edmond, and guthrie were all so affected.