THIS GIRL IS DEBATING ME. CAN SOMEONE HELP ME ON MY LAST QUESTION (BEFORE THIS) AND CONFIRM WHETHER MY LOGIC SOUNDS REASONABLE.

Also, please solve... Mr. harris drives 7.5 miles directly east from his home to a restaurant. he then drives 8 2/3 miles directly east of his restaurant to his office. how far, and in what direction, is his office from his home?