[JolyB]

All are $1 trifectas.

18 // 2,3,8,10,15 // 2,3,6,8,10,15

8 // 2,3,10,15,18 // 2,3,6,10,15,18

15 // 2,3,8,10,18 // 2,3,6,8,10,18

6 // 2,3,8,15,18 // 2,3,8,10,15,18

Total = $100

Good luck to all.