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Is a currency whose value is tied to another currency, meaning that the exchange is fixed

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

Match each statement with its corresponding value for the system below: y = -2(3)x and y = 9x - 2 1. the number of points of intersection. -2 2. the x-coordinate of the solution. 1 3. the y-coordinate of the solution. 0