c$.$ Ths process of designing and implementing a website for commercial use can be described as follows. First, the customer and the web design team have an informational meeting for half a business day. If the first meeting is successful, the customer and the web desigh team meet again for a full day to work on the storyboard of the site. If the first meeting is not successful, then the process is over, which means the customer will look for another web designer. After the storyboard is completed, the site design begins; immediately after that, the site is developed. The design of the site typically takes $10$ business days. The development of the site requires $2$ business days. While the site is being designed and developed, the contents are prepared. It takes $5$ business days to complete an initial draft of the contents. After the initial draft is completed, a decision is made to have a marketing team review the initial draft. Experience shows that about $60\%$ of the time the marketing review is needed and $40\%$ of the time the final version of the contents is prepared without the marketing review. The marketing review requires $3$ business days, and the preparation of the final version requires $4$ business days. The contents are then put into the site. This activity is referred to as building. $($Note that before the building can be done, the development of the site and the contents must be completed.$)$ Building the site takes about $3$ business days. After the site is built, a review activity is completed to check that all links and graphics are working correctly. The review activity typically is completed in $1$ business day. The final activity is the approval of the site, which is done in half a business day. About $20\%$ of the time, the sites are not approved. When a site is rejected, it is sent back to the building activity. When the site is approved, the design process is finished.

Draw a flowchart of this process.

Calculate the average cycle time.