20 years
z score
The term 'score' is not found in many English translations.
I score all the time when i play soccer.
It is the equivalent of a triple word score.
Any number with the word "UP" next to it means that the score is tied ...
When a student takes a test or examination the result they receive, as a number, is often called a score. The average of a collection of scores, say for one class of students, is called a mean score. Mean is just another word for average.
It means that there is no score so saying 15-love you would be saying the score is 15 to nothing
z-score
Z-Score.
That would be 77. The word "score", when speaking of years or numbers, comes to mean "20".
When a student takes a test or examination the result they receive, as a number, is often called a score. The average of a collection of scores, say for one class of students, is called a mean score. Mean is just another word for average.
"Three score" means 60. The word "score" in this sense means 20 of something, a usage that was more common in the past than it is now.