Imran makes lemonade by mixing lemon juice, sugar and water in the ratio 8: 3:13. He wants to make litres of lemonade. How much of each ingredient does he need?

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2