due in a few minutes

The parabola opens: y=√x-4 (principal square root) up down right left

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

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