Tina has a rectangular planter box. She decides that she needs more planting space so she triples the length, doubles the width and leaves the height alone. If the original box is full of soil, how many times greater is the volume of soil in the new box?

6

Step-by-step explanation:

The volume is proportional to length, so tripling the length multiplies the volume by 3.

The volume is proportional to width, so doubling the width multiplies the volume by 2.

Tina's new planter box is 3*2 = 6 times the volume of the original.