 
 <prompt> Oja aja ni o ni irorun ti o wa. Won ni o ni laarin awon ologbo, meji ni awon ologbo, meje ni awon eye, ati mewa ni awon eja ti o wa. Nitorina, owo ni awon ologbo ti o wa ni oja aja? <response>: The pet store has 6/2 = 3 cats for sale.
They have 6 x 2 = 12 birds for sale.
They have 6 x 3 = 18 birds for sale.
Therefore, there are a total of 6 + 3 + 12 + 18 = 39 pets for sale.

The final answer: 39. 