Image popup when score reaches 10 C#

Questions & Answers
1

Hello,
I am beginner.

My game for Android is nearly complete just need to add one more stuff to it.
My Question is:

When my player reaches score 10, an Image will appear with a sound, and it will ask the user whether to continue the game or not, and if the player chooses continue then the game will resume, that’s it. I am stuck at this. Please help me solve the problem.
Below is the score code. The score is working fine, but I don’t know how to popup an Image and make a sound play.
Thanks in advance

void OnTriggerEnter2D(Collider2D coll) {

		//if player collides with score trigger we will increment score
		if (coll.name.Contains ("Score")) {
			if (IncreaseScore != null)
				IncreaseScore (null, null);//to fire the score increment event,uicontroller will uses this event
			coll.name = "USED"; //to avoid repeated trigger enter events

			//if(IncreaseScore > 10)
			//{
				//GUI.Texture();
			//}
		 
		}
2

public GameObject PopUpWindow;
if( IncreaseScore <= 10)
{
PopUpWindow.SetActive(ture);
Time.timescale = 0;
}

now just create GameObject with yout button resume and add this script to the button

public GameObject PopUpWindow;
void OnPointerClick(){
Resume();
public void Resume(){
Time.timeScale = 1;
PopUpWindow.SetActive(false);
}