How did the immigrants who came to the united states between 1820 and 1860 change the character of the country?

More people meant more mouths too feed and needed faster productivity, aka they started building things more often and began major companies, DONT quote me on that because im not a genious, just look up how the economy changed when immigrants came in the 1820s,

Unopened bottle means that it hasn't been used to pour. So that's x=0.

Plug in x=0 and solve for y.

y = 128 - 8(0)
   = 128-0
   = 128

So there are 128 ounces of juice in unopened bottle.