During the , the Mongols encouraged trading activities by foreign merchants. They reestablished the Silk Road. The Mongols welcomed the foreign merchants at Chinese ports. European merchants such as entered China during the time.

The Mongols are an East Asian/Central Asian ethnic group who are indigenous to Mongolia and China's Inner Mongolia Autonomous Region. They are also minorities in other parts of China and in Russia. Mongolians of the Buryat and Kalmyk subgroups are mostly found in the Russian federal subjects of Buryatia and Kalmykia.Explanation:

Pax Mongolica

Marco Polo

zheng he was a chinese explorer who lead seven great voyages on behalf of the chinese emperor. his seven total voyages were diplomatic, military, and trading ventures, and lasted from 1405 – 1433. however, most historians agree their main purpose was to promote the glory of ming dynasty china.

explanation:

254.34

step-by-step explanation:

the formula for area of a circle is given by

a = pi * r^2

a = pi * 9^2

a = 81*pi

using 3.14 as an approximation for pi

a = 3.14*81

a = 254.34