Yes.
asdfghjkldfghjklhjkl
Yes.
If it is joined by an "and" it does. If it is joined by an "or" it does not.
When there is an ordered pair that satisfies both inequalities.
They are not. An inequality cannot, by definition, be the same as an equation.
A linear equation represents a line. A linear inequality represents part of the space on one side (or the other) of the line defined by the corresponding equation.
A system of linear inequalities
Although there are similarities, the solutions to a linear equation comprise all points on one line: a one-dimensional object. The solutions to a linear inequality comprise all points on one side [or the other] of a line: a two-dimensional object.
Yes.
asdfghjkldfghjklhjkl
Yes.
Linear inequalities in one variable
When there is an ordered pair that satisfies both inequalities.
If it is joined by an "and" it does. If it is joined by an "or" it does not.
Even if you keep the decimal, later on you will still have to remove it. It is just an easier way to solve the equation.
A linear equation corresponds to a line, and a linear inequality corresponds to a region bounded by a line. Consider the equation y = x-5. This could be graphed as a line going through (0,-5), (1,-4), (2,-3), and so on. The inequality y > x-5 would be the region above that line.