The questions are asking what percent it changed, not what amount.
Answer:
9x² - 4/3x + ¼
Step-by-step explanation:
(3x - ½)²
(3x - ½)(3x -½)
9x² - ⅔x - ⅔x + ¼
9x² - 4/3x + ¼
To help vegetables stay fresh longer, Volume of storage of 951 cubic feet is equal to 26.929 
<u>Solution:</u>
Given that to help vegetables stay fresh longer, Liam’s family maintains storage.
Total volume of root cellar that is storage is 951 cubic feet.
Also given that 1 foot = 0.3048 meters
need to find the volume of storage in cubic meter that is 


Hence volume of storage of 951 cubic feet is equal to 26.929 
He is 38 kg.
I'll use only the first letters of their names, to make it simpler:
S+L=54.75
S+M=105
M=4L
S+4L=105
105-54.75=4L-L=3L
L=50.25/3=16.75
S=54.75-16.75=38