Koka buys three dozen japanese andagi (deep-fried doughnuts). each dozen costs $7.29. on average, how much money did koka pay for each doughnut? round to the nearest cent.

Cost of each dozen of Japanese andagi = $7.29
The above sentence can also be written as
Cost of 12 Japanese andagi = $7.29
Then
The cost of each doughnut = (7.29/12) dollars
                                             = 0.607 dollars
                                             = 0.61 dollars
So the cost of each doughnut or Japanese andagi is $0.61. I hope the answer is what you were looking for and the procedure for solving this question is also clear enough for you to understand. You can use this procedure to solve similar problems in future.