The cease-fire that ended the Vietnam War stated that O Americans had to return Communist prisoners of war.
Communists had to withdraw their forces from South Vietnam.
O both parties had to respect South Vietnam's right to self-determination.
O the United States could not add troops to its existing forces in South Vietnam.

the fraction 18/22 is equivalent to 9/11.

in decimal form if needed

this is a proper fraction once the absolute value of the top number or numerator (18) is smaller than the absolute value of the bottom number or denomintor (22).

the fraction 18/22 is equal to 18÷22 and can also be expressed in decimal form as 0.818182.

the poor lived on the docks by the sea, and the wealthy lived in highly populated urban areas. that is the answer