The united states wanted to acquire new orleans in 1803 in order to:

To ensure American access to the Mississippi river and access to trade routes.

Explanation:

The U.S feared that France wanted to establish an empire in America, which would restrict the United States. Jefferson wanted to acquire New Orleans so, if the French did arrive in America, the U.S would still have access to trade routes and the Mississippi river.

the three roles stated in the dialogue develop the siblings' personalities.

lloyd's personality looks like a trademarketer

dana's personality is afraid from lloyd's behavior and the oldest sister is a decided person who tries to solve any conflict

in the 1800s, chinese workers migrated to the united states, first to work in the gold mines, but also to take agricultural jobs, and factory work, especially in the garment industry. chinese immigrants were particularly instrumental in building railroads in the american west, and as chinese laborers grew successful in the united states, a number of them became entrepreneurs in their own right. as the numbers of chinese laborers increased, so did the strength of anti-chinese sentiment among other workers in the american economy. this finally resulted in legislation that aimed to limit future immigration of chinese workers to the united states, and threatened to sour diplomatic relations between the united states and china.