it is called a variable
Let n be the number between 4 and 7 then the required expression is written:- 4 < n < 7 The symbol used is a "less than" symbol and the expression is 4 is less than n which is less than 7. When the arrowhead points to the right > then this is called a "greater than" symbol and we could put n > 4 and 7 > n.
its called an inequality
A power or exponent.
when a symbol such as <or> is placed between two expressions
It is the power, index or exponent.
"less than or equal to". The symbol for less than is " < " and for less than or equal to it is < with a line under it
A Decimal Point.
Decimal point, giving 1.2
It is: 2<3 which means the numbers are greater than 2 but less than 3 as for example 2.5
A math expression is a symbol or combination of symbols that represents a quantity or a relationship between quantities.
put a . 5.9 is bigger than 5 and smaller than 9
is one symbol already an expression in math
You have an inequality.
An algebraic expression will normally include one or more variables that is represented by a letter or some non-numeric symbol.
The symbol for greater than is >
The symbol for greater than is > and the symbol for less than is <
An exponent is a quantity representing the power to which a given number or expression is to be raised, usually expressed as a raised symbol beside the number or expression. A coefficient is a numerical or constant quantity placed before and multiplying the variable in an algebraic expression. In the expression 4x^2 (four x squared) the four is the coefficient and the 2 is the exponent.
A symbol such as a comma, a colon or a hyphen.
This is used in computer languages (including spreadsheets like Excel) to indicate inequality. If two numbers are not equal, then the first one is either larger or smaller than the second one. This symbol is sometimes used because the standard inequality symbol is not readily available.