Depends. What kind of francs? French, Swiss, Guinean... and what kind of dollars? US, Australian, Brunei, Canadian, Cayman Islands... There are at least 5 countries that use the Franc as a unit of currency (although the French Franc is obsolete and has been for 14 years), and at least 17 countries that use the dollar. And EVERY one of them has a different value.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it