6on top sigma 2 on the bottom 3(-5) to the power of n-1 find the sum

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

According to the data set, where should the upper quartile line of the box plot be placed?

How is this equation completed? i cannot find any examples in the book.