She started with 81 baseball cards.
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.
Step-by-step explanation:
multiply all the numbers by 4 I think except for the exponent
26.6666666667 dollars per payment