Just warning y'all if you get a link from someone saying something like this " the answer is in the link or file" pls dont press it, it's a virus!

What is (28 + 7 + 6 + 3) x 1/2 show your work

1foot = 12 inches; 1 yard = 3 feet

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