A half rest takes 4 beats
A whole rest takes in a 6/8 measure 6 beats, in a 9/8 measure 9 beats and in a 12/8 measure 12 beats.
Every note in a group of sixteenths can be replaced by a rest.
The duration together remains 2 beats.
A quarter rest with dot takes 3 beats
An eighth note with dot takes one and a half beat
So actually this is:
The above notes and rests can be combined in many ways into a group of notes. Such a group is then called a motive. For examples, see the exercises in this course.