which of the following are examples of actions that affect the rest of the
world in some way?
check all that apply.
o
a. flushing a toilet
o
b. posting a video clip on the internet
o
c. buying popcorn at a movie
d. throwing a dead battery in the garbage

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].

Answer b is the answet