Answer:
t = 5
Step-by-step explanation:

Subtract 19 from 39
Divide by 4
I would say there would be 5 itineraries ie one each for Thailand, Singapore, Hong Kong, Laos and Bali though for the countries Thailand and Laos there may be more than one stop so there would be a minimum of 5 itineraries.
Answer:
isk
Step-by-step explanation: