Algebra

1. a quantity that does not change
4. a letter used to represent a value or unknown quantity that can change or vary
5. the factor being multiplied together in an exponential expression, in the expression ab, a is the base
6. one of two or more numbers that when multiplied produce a given product
7. the number multiplied together in an algebraic expression
9. terms that that contain the same variables raised to the same power
11. the order in which expression are evaluated from left to right
15. a ratio that compares different kinds of units

2. a mathematical statement that includes numbers, operations and variable to represent a number or quantity.
3. something that can be compared by assigning a numerical value
8. a rate per one given unit
10. the number of times a factor is being multiplied together in an exponential expression
12. a mathematical sentence that uses an equal sigh to show that two quantities are equal
13. in statistics, the difference between the largest and the smallest numbers in a data set
14. a number, a variable, or the product of a number and variables