Answer:
800 ft, you should write ur own sentence tho
Step-by-step explanation:
520 - (-280) = 800
Step-by-step explanation:

to fulfill manifest destiny, the American dream to expand, as well as reach the ocean on the west in order to have more options for trade
Answer:
The simplified expression is -4x and the value is -516
Step-by-step explanation:
−12x+14x−6x
Combine like terms
2x-6x
-4x
Let x =129
-4*129
-516