9.} A rectangular pen is built with one side against a barn. Two hundred meters of fencing are used for the other 3 sides of the pen. What is the maximum area of the pen? 10.)A man wishes to get from an initial point on the corner of a square lake to the terminal point on the opposite corner of the lake (diagonally across). Each side to the lake is exactly 2 miles long. If he walks 4 mph and swims 2 mph what is the minimum time for the trip? Finish