Answer:
American dollars.
Explanation:
Let be "x" the amount of American dollars that Tj spent on his vacation in Montreal.
According to the information provided in the exercise, you know that 1 Canadian dollar is equal to $0.76 of an American dollar.
Then, knowing that the amount of Canadian dollars he spent on dinner was $209.75, you can set up the following proportion:

Finally, you can solve for "x" in order to find its value.
You get that this is:
