The United States Mint spends on average 1.7 cent to make a penny, 8.1 cents to make a nickle, and 3.8 cents to make a dime. Jingly Pantaloons always has at least one penny, one nickle, and one dime in his pocket, but never any quarters due to a fear of George Washington. Today, Mr. Pantaloons has 36 cents. To the nearest tenth of a cent, what is the most the United States Mint could have spent to make his coins?