Neutrality acts (1935 - 1939) cash and carry policy (september 1939) lend-lease act (march 1941) what would be the best title of the list?

The correct answer is  "World War II: From Isolationism to Involvement"

Explantion:

would be the best name for this list. When the first Neutrality Act was passed in 1935, the U.S. hoped to isolate itself from European- and Asian- affairs completely. But over time this stance softened: the expansion of Germany, Italy, and Japan was the main cause of this. By the time the U.S. officially entered the fighting following the attack on Pearl Harbor in December of 1941, the U.S. was steadily supplying its allies with war materiel.

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

1) she is extremely upset