Wildlife Management Robert Tobey in Copper Center, Alaska, wants to put a field under heli...

Wildlife Management Robert Tobey in Copper Center, Alaska, wants to put a field under helicopter surveillance because of a roving pack of wolves that is killing other wildlife in the area. The field consists of two rectangular regions. The first one is 4 miles by 5 miles. The second one is 12 miles by 8 miles. How many square miles does he want to place under surveillance?