Q1 Determine whether the following production functions exhibit constant, increasing, or decreasing returns to scale. (1). Q=0.5X +2Y +40Z. (10 points) (2). Q=3L+10K +500. (10 points) (3). Q=4A+6B+8AB. (10 points) (4). Q=712+5LK+2K2. (10 points) (5). Q=10105103. (10 points)