1. The length of the line segment connecting point A (-5, 16) and point B (-17, 7) is   21   15   9   12   225   Hint Half-n-half Clue   2. Consider a square with side of length a, and an an isosceles right triangle with one side of length a and hypotenuse of length b. What is the sum of the areas of the square and the triangle?   2a2/3   a3b/2   a2 + ab/2   2a3b   3a2/2   Half-n-half Clue   3. A large water reservoir has two outlet pipes, a small one and a large one. It takes 6  hours to empty the reservoir when only the small outlet pipe is open. It takes 5  hours to empty the reservoir when only the large outlet pipe is open. About what fraction of the reservoir will be emptied in one hour if both the pipes are open?   cannot be determined   0.37   0.17   0.03   0.20   Half-n-half Clue   4. Mr. Kennedy bought 400  shares of ABC Inc. in 1998  at a price of $ 9  for each share. He sold all these shares yesterday for 70% more than he paid for them. If he has to pay a tax of 40% on the gain, how many dollars does he pay as tax?   1008   336   1440   2520   None of these   Half-n-half Clue