How many ways can you express $17.35 in Canadian bills and change?
There is one additional proviso: any combination may not have more than two of any denomination.
Submit your answer to Gene Wirchenko <firstname.lastname@example.org>. Your answer should be in the form of a proof. That means to show how your answer must be correct. The deadline is Wednesday, May 3, 2017 at noon Pacific Time. I will post the answer shortly after.