For much of the 20th century, china's economy was which of the basic economies: traditional, command, market?

The correct answer is command economy.

China maintained a command economy for decades before transitioning to a mixed economy that features both communistic and capitalistic elements.

A command economy is controlled by the government and not the free market. The government determines what goods should be produced, how many of them and at what price. Command economies exist in communist or socialist states such as the former Soviet Union, North Korea, Cuba and China.

Another term for China's economy is socialist market economy. China has a mix of government-owned businesses as well as tightly controlled private businesses.

the arab empire adopted the muslim religion as their main belief. arabs would influence the people from the territories they invaded towards islam (the muslim belief).

nevertheless, throughout the history of the arab empire, rulers brought intellectual individuals from other religions to their centers of learning. these other foreigners included jews, christians, greeks, persians, and indians.   these resulted in the adoption of important knowledge developed by these cultures by the arabic empire. for example, the works of aristotle were translated from greek to arab and indian scientists brought the numerical concept of "zero" to the arabs.

nowadays, 93% of the arab population is muslim, which at the same time is subdivided in sects including the sunni, zaini, alawi, shia. the remaining 7% is composed mainly of christians.