What effect did mass immigration have in cities

hi :D

Explanation:

The Immigration Service continued evolving as the United States experienced rising immigration during the early years of the 20th century. Between 1900 and 1920 the nation admitted over 14.5 million immigrants. Concerns over mass immigration and its impact on the country began to change Americans’ historically open attitude toward immigration.

hope this helps u extra .-.

d) he bring down boss tweed and tammany hall.

simplify brackets

8 - 2a - 7 = a + 40

simplify 8 - 2a - 7 to -2a + 1

-2a + 1 = a + 40

add 2a to both sides

1 = a + 40 + 2a

simplify a + 40 + 2a to 3a + 40

1 = 3a + 40

subtract 40 from both sides

1 - 40 = 3a

simplify 1 - 40 o -39

-39 = 3a

divide both sides by 3

-39/3 = a

simplify 39/3 to 13

-13 = a

switch sides

a = -13