Question

If you can exchange 104.51 US dollars for 1,322.14 Mexican pesos, what is the exchange rate of the US dollar to the Mexican peso, to three decimal places?

Answer 1

Given:
USD: 104.51
Mexican pesos: 1,322.14

1,322.14 / 104.51 = 12.65

1 US Dollar is equal to 12.65 Mexican Pesos

or 

104.51 / 1,322.14 = 0.079

1 Mexican peso is equal to 0.079 US Dollars.