When the temperature reaches 90 approximately how many glasses of lemonade will be sold?

The number of glasses of lemonade sold at a temperature of 90 degrees can vary based on several factors, including location, time of year, and local demand. However, it's common for sales to increase significantly on hot days, with some vendors reporting sales in the range of 50 to 100 glasses or more per day. To get a more accurate estimate, it's helpful to analyze historical sales data for similar temperature conditions.