For this case we have that by definition, the volume of a cuboid is given by:

Where:
L: It's the long
A: It is the width
h: It is the height
According to the problem data we have:

So, the volume of the cuboid is:

Finally, the volume of the cuboid is: 
Answer:

Answer:
9.5 inches
Step-by-step explanation:
The relationship is presumed to be ...
(first week's growth) + (second week's growth) = (growth in two weeks)
(first week's growth) + 3.43 inches = 12.93 inches . . . . . fill in the numbers
Subtract 3.43 from both sides of the equation:
first week's growth = 12.93 inches - 3.43 inches
first week's growth = 9.50 inches
The plant grew 9.50 inches in the first week.
All you need to do is divide 0.6 into both sides.
10.3/0.6= 17.166666666667 ( you could round up to 17.2)
I hope this helps!
~cupcake