Well when u multiply 1 times something u get the same #
Answer:

Step-by-step explanation:

Distribute 4(x+2).

Subtract 2x and 8 from both sides.


Divide both sides of the equation by 2.


Answer:
The choose first.

Step-by-step explanation:

I hope I helped you^_^
Answer:
31
Step-by-step explanation:
although we cannot see the whole graph, I assume it would be 31 because
2010-1979 is 31
and the x values are years after 1979