What is the domain of
(9c+160)/5

the domain: no real numbers so its  negative infinity, positive infinity  

v: l•w•h÷2.

v: 20•6•8 ÷2

v: 960÷2

v: 480

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents