You throw three darts at the board shown. each dart hits the board and scores a 1​, 3​, or 9. how many different total scores can you​ make

In a game of darts which includes only three darts and three scores you can expect to make ten different total scores. Those total scores can be tabulated and listed as follows:
 1+1+1=3
 1+1+3=5
 1+3+3=7
 3+3+3=9
 1+1+9=11
 1+3+9=13
 1+9+9=19
 3+3+9=15
 3+9+9=21
 9+9+9=27