Answer:
13
Explanation:
get 2 six packs. get 6 two packs
. get a six pack and 3 two packs
get 12 singles
. get 6 singles and a six pack
get 2 singles and 5 two packs
get 4 singles and 4 two packs
get 6 singles and 3 two packs
get 8 singles and 2 two packs
.get 10 singles and a two pack
get a six pack and 6 singles
.get a six pack, a two pack, and 4 singles
.get a six pack, 2 two packs, and 2 singles