Algebra!!!!

3. the rate at which a repeating event occurs per unit of time
7. the U shape
10. the measure of an angle
11. the space between two intersecting lines
15. indicates how many times a number, called the base, is multiplied by itself
18. the difference between consecutive terms is always the same
20. a point where two lines meet

1. To solve a problem
2. a specific order in which things follow each other
4. - an even function function and is periodic with period 2π
5. a recurring sequence or arrangement of elements (numbers, shapes, etc.) that follows a specific rule or structure
6. shows how many times a number contains another
8. a shape with no edges
9. - with a ruler we
12. difference between the lowest and highest values
13. the perimeter of a circle
14. the set of all possible x-values
16. = a/c
17. an addition of infinitely many terms, one after the other
19. = a/b