Solve these questions please hurry

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

Find the value of x. round the length to the nearest tenth

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,