The equation of the line parallel to 6x+2y=49 is y=-3x+21. This also includes the point (4,9)
To find perimeter, all you need to do is add each side of the shape together. In this case you have a quadrilateral. Since you did not attach a picture of the quadrilateral, I cannot give you the exact answer that you are looking for. But, I do know that you will have 4 numbers. Simply add them up and the sum will be your perimeter.
Answer:

Step-by-step explanation:

Answer:
<em>780cm cubed</em>
Step-by-step explanation:
- <em>if we want to find the volume we would do length x width x height</em>
- <em>which would be 5 x 12 x 13</em>
- <em>so we would do 5 x 12 which is 60 </em>
- <em>then we would do 60 x 13 which equals 780</em>
- <em>So the answer is 780</em>
- <em>Since this is volume it would be 780cm cubed</em>