Agallup poll asked 1013 randomly chosen american adults to rate the honesty and ethical standards" of 45 occupation. nurses were at the top, with 73 percent of the poll respondents rating them "high", while car salesman where at the bottom with just ate percent being rated high.
the population for the situation is:
a. all adults in america.
b. the 1013 respondents.
c. people in 45 occupations.
d. nurses and car salesman.

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].