Math homework please help?

Miriam is planning a trip to new england to spend a weekend on the beach. She needs some Americna currency. She receives US{content}.75 in exchange for one Canadian dollar. Consider the relation between the number of Canadian dollars and the number of American dollars obtained in exchange.

complete the table of values
table of values :
0 0
1 0.75
….. ……

What rules describes this relation?
What is the rate of variation of this relation?
how much will miriam have to spend to receive 500?

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