1. Mr. Kennedy bought 600  shares of ABC Inc. in 1994  at a price of $ 5  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 30% on the gain, how many dollars does he pay as tax?   630   2100   210   None of these   900   Hint Half-n-half Clue   2. If x is negative and (x - 4)2 = 100, then x2 is equal to   196   36   14   104   -6   Half-n-half Clue   3. If the base of a triangle is decreased by 30%, and its height is increased by 30%, then the area of the triangle   decreases by 30%   decreases by 9%   increases by 30%   remains unchanged   decreases by 51%   Half-n-half Clue   4. If 3 x + 2 y = 47 then 18 x + 12 y is equal to   282   47   329   376   none of these   Half-n-half Clue