The length of the box would be 12288.
Well, 6 x 9 = 54 which means the answer is 54. Hope this helps :)
Answer:

Step-by-step explanation:
Where p is the distance from focus to vertex, the equation of the parabola with focus at (0, p) is ...

Your parabola has p=9, so the equation is ...

Answer: 33
Step-by-step explanation:
57+42=99
99/3=33