Answer
Pattern: -2 is added to the previous term.
The next two terms: 5, 3
Work Step by Step
The sequence: 13, 11, 9, 7,...
Finding the pattern:
Difference between 1st and 2nd term:
2nd term-1st term=Difference
11-13=-2
Difference between 2nd and 3rd term:
3rd term-2nd term=Difference
9-11=-2
Difference between 3rd and 4th term:
4th term-3rd term=Difference
7-9=-2
-2 is being added to the previous term each time.
Finding the next two terms:
Fifth term= Fourth term - 2
= 7- 2
= 5
Sixth term= Fifth term - 2
= 5- 2
= 3
Therefore the next two terms are 5 and 3
