From this: To minimize the days customers are turned away and to adhere to a 10% target, she should make enough zongzi to meet the daily demand, considering the time it takes to prepare and the time before spoiling. Given that the average daily demand is 90 zongzi, and it takes 2 days to prepare, she should always have 180 zongzi in preparation to meet the demand for the next two days. However, since zongzi spoils after 24 hours, she can only sell the zongzi made on the previous day. This means she should make 90 zongzi per day, so she always has fresh zongzi to sell and is also preparing for the next day's demand. To adhere to a 10% target, she should make an additional 10% of the daily demand, which is 9 zongzi. This is to account for any unexpected increase in demand or spoilage. So, in total, she should make 99 zongzi per day (90 to meet the daily demand and 9 as a buffer). This way, she can minimize the days customers are turned away and adhere to a 10% target. If Tara makes 50 zongzi daily, what would be the number of days customers are turned away