Fried rice & all things nice

So, I just got off the phone from one of the local eating establishments here in Dubbo...it's of asian decent as was the person I spoke to.

I placed my order, they told me my order number. I asked "How much will that be"...answer = number 35 (my order number), I replied with "no, how much will it cost"...answer = 10 minute, I replied with "no, how many dollars, how much will it cost"...answer = oh $38.60.

I thought it was such an easy question...obviously this person arrived prior to the English speaking test!