WILL MARK BRAINLEST Seattle's Space Needle is a symbol of
o cultural differences,
O population growth.
o advances in technology.
o the separation of powers

I believe it is either A or C. Anywhoo it is better than the answer above.

Explanation:

C. Advances in technology

Explanation:

This growth of Seattle has led to greater influence of that main city. And that was really shown when it hosted the World's Fair in 1962. During that time, it built the Space Needle. If you've ever been to Seattle, that's where it's located and that's why it was built. And it showcased scientific and technological advancements.

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

marlow

explanation: