Answer:

Step-by-step explanation:

Answer: I: (3, +infinity) D: (-infinity, 3) (this is the fourth answer)
Step-by-step explanation: The graph is decreasing left to right until 3, and begins to increase from left to right beginning at 3.
Answer:

Step-by-step explanation:
First, you need to divide everything by 6.
Then you put everything in a radical to get this:

Answer:
Question:14
3x4 (for the left square, 3 on the side(width) and 4 on the bottom(length))
3x9 (for the right square, 3 on the side(width) and 4 on the bottom(length))
3x13 (for the entire rectangle)
Question:15
3x10 (for the left, 3 on the side(width) and 10 on the bottom(length))
3x6 (for the right, 3 on the side(width) and 6 on the bottom(length))
Step-by-step explanation: