Under Deng Xiaoping, the Chinese Communist pary began pursuing policies designed to:

Deng xiaoping, 22 August 1904 – 19 February 1997) was a Chinese politician who was the paramount leader of the People's Republic of China from 1978 until his retirement in 1992. After Chairman Mao Zedong's death in 1976, Deng gradually rose to power and led China through a series of far-reaching market-economy reforms, which earned him the reputation as the "Architect of Modern China."

Use the formula: (n-2)×180, where n is the number of sides(18-2)×180= 28800, now this is the full exterior angle of 18-gon so you divide it by 18.28800÷18=160

There’s no picture, but i’ll give you a few of expeditions. lewis and clark began in 1804, louisiana purchase 1802, james town 1607