Maths

3. A _____ is a proven statement used for proving another statement
6. Two lines that do not meet
7. Any integer that is greater than one and is not a prime number
9. Method of substituting one variable to solve the other
11. Least Common Multiple
13. Method of eliminating one of the variables
14. Two lines that lie on top of one another
15. Any number that cannot be written in the p/q form
19. The sum of its positive divisor excluding the number itself is known as ______ number
20. A statement that has been proven

1. Procedure or formula for solving a problem
2. Any number that can be written in p/q form
4. A decimal number that has digits that do not go on
5. A curve formed by all points
8. An ________ is an equality containing one or more variable
10. Tow or more lines that meet at a point
12. A natural number greater than one that has no divisor other than one itself
16. A set of whole numbers
17. A polynomial of degree 1
18. Highest Common Factor