They are not equivalent, try adding in numerical values for x, both do not come out the same.
Volume = L x W x H
so 12 x 4 x 2=96^3 ft (^3 means cubic)
Median: 6
Population: 5
This is 100% correct. Hope I helped.
18t=4
to get the answer you have to divide 4/18
the answer is both 2/9 or 0.2222222222
6x-2=5x+29
6x-5x-2=29
x-2=29
x=31