Algebra

6. Numbers, symbols and operators (such as and times) grouped together that show the value of something
9. a number or ratio that represents a fraction of 100
11. a quantity or parameter that does not change its value whatever the value of the variables, under a given set of conditions.
14. the part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations.
15. the quantitative relation between two amounts showing the number of times one value contains or is contained within the other.

1. is an expression built up from integer constants, variables, and the algebraic operations.
2. a mathematical statement with an equal to symbol between two expressions that have equal values
3. a numerical or constant quantity placed before and multiplying the variable in an algebraic expression
4. relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.
5. a decimal (base 10), octal (base 8), or hexadecimal (base 16) number that represents an integral value
7. a quantity which during a calculation is assumed to vary or be capable of varying in value.
8. It may be a single number (positive or negative), a single variable ( a letter ), several variables multiplied but never added or subtracted. Some terms contain variables with a number in front of them.
10. a number expressed as a quotient, in which a numerator is divided by a denominator
12. an arithmetical value, expressed by a word, symbol, or figure, representing a particular quantity and used in counting and making calculations and for showing order in a series or for identification
13. the process of combining matrices, vectors, or other quantities under specific rules to obtain their product.