If you divide a fraction by another fraction, this is equivalent to mupltiplying by its inverse:
so

divided by

is equivalent to

multiplied by by
which is

so the answer is

which is also 0.5
Vsphere=(4/3)pi times r^3
r=radius
given that r=2
v=(4/3)pi2^3
v=(4/3)pi8
v=32/3pi cubic inches
about 10.66666pi cubic inches or hmm, roughly 31 cubic inches (guestimated in head)
Answer: look up alaskan pipeline
Step-by-step explanation: