if 9 people greet each other at a meeting by shaking hands with one another, how many handshakes will take place?

The sum of the lengths of all the edges of a cube is 6 centimeters. what is the volume in cubic centimeters of the cube

Blank is the amount of energy in a sound wave per unit of time and is also related to the loudness of a sound

Victor is concerned about his constant impulsive tendencies. he thinks something must be wrong with him. what is a healthy action victor could take? take some of his friend's add medication to see if it . follow what his friend tells him he needs to do to solve his feelings. listen to a mental health professional who can guide him through his troubles. diagnose himself and take some natural supplements.