according to this problem, What is the theoretical flow time (in minutes) for one order (consisting of two separate cakes), from the ordering thru payment. Assume no waiting over the entire process.

Use the description below to answer the next 2 questions: Jeff and his roommate are in the cake baking business. When they receive an online order, Jeff prepares a bowl and mixes cake batter which takes 6 minutes. He then pours the batter into a baking pan that holds 1 cake (2 minutes). His roommate then puts the cake pan in the oven and sets a timer (1 minute). Cakes bake in the oven for 9 minutes and then are cooled outside the oven on a rack for 5 minutes. Finally the roommate takes 2 minutes to box a cake and then collects payment from the arriving customer (1 minute). Each order is composed of a two tier cake (2 cakes). Also Jeff and his roommate can only perform their assigned activities and cannot perform the other's. Although the mixing bowl can hold batter for two cakes at one time, assume the oven can only hold one cake pan at a time. As mentioned above, pouring batter into each pan takes 2 minutes, both cakes must be cooled before boxing, and each cake is put into the box separately one on top of the other. Note: It would help if you draw the process flowchart, but it's not required