Question

my daughter came home with input/output table don't understand how to do it
Input Output
4 33
5 36
11 54
16 69

Answer 1

You must add 3 for all next output number.

Series:

4 33

5 36

6 39

7 42

8 45

9 48

10 51

11 54

12 57

13 60

14 63

15 66

16 69

Answer 2

OR:

1 24

2 27

3 30

4 33

5 36

6 39

7 42

8 45

9 48

10 51

11 54

12 57

13 60

14 63

15 66

16 69

17 72

18 75 etc