Vietnam
a. is a province of china.
b. adopted many aspects of confucianism.
c. ruled china until about 1000
a. d.
d. was once a hindu kingdom.
e. still uses chinese ideographs for written communication.

Vietnam still uses Chinese ideographs for written communication. The correct answer is letter E. China ruled Vietnam for more than a thousand years. They also learned about the fast ripening and drought resistant strains of rice to enable to support their ever growing population.

Amath expression is a collection of one or more terms, which are separated by the signs ( + , - , x , / ).example :   8+b8+b  or  a−3a−3in algebra, an equation is a mathematical statement with two expressions where, each expression is separated by an equal (=) sign. variables can be present on both the sides of the equality (=) sign and we use letters to denote such variables.example 1:   x=4+2x=4+2  , [here, we can observe that the variable is present only on one side of the equation].example 2:   2x+3=x+42x+3=x+4  , [here, we can observe that the variables are present on both side of the equation].

Answerweathering;