1. If a / b = - 2 / 3, then b3 / a3 is equal to   - 27 / 8   9 / 4   27 / 8   - 8 / 27   8 / 27   Hint Half-n-half Clue   2. If f(x, y) = 2 y - x2 where x and y are real numbers, then f( f(5, 6), 6) is equal to   -13   157   13   -157   -181   Half-n-half Clue   3. The length of the line segment connecting point A (-1, 14) and point B (-13, 5) is   9   12   21   225   15   Half-n-half Clue   4. A piece of equipment consumes c cents per hour of fuel and requires d dollars per hour for other operational costs. What is the cost in dollars of operating the equipment for 300  hours?   300 c + 3 d   3 c + 300 d   300 (c + d)   0.01 c + d   3 (c + d)   Half-n-half Clue