Ok, here is the problem.

Projects Programming
11 
...
const int pingPing = 7;
...
  if (pingPing < 10) { 
...

Seven is always going to be less than ten.

This bit reads the ping sensor:

  long duration, inches;

  pinMode(pingPing, OUTPUT);
  digitalWrite(pingPing, LOW);
  delayMicroseconds(2);
  digitalWrite(pingPing, HIGH);
  delayMicroseconds(5);
  digitalWrite(pingPing, LOW);

  pinMode(pingPing, INPUT);
  duration = pulseIn(pingPing, HIGH);

  inches = microsecondsToInches(duration);

It gives you two results, duration and inches. I suggest you modify your robotRight() function to take one of them as a parameter (inches is probably easier) then use that to determine what to do with the servo.