Encontre e escreva fraçoes equivalentes a 3/8 denominador e igual a 24=

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

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

With number 11 ( show how you got the answer)