Explain the domain. how has it changed over the years?

The domain is the range of mandate recognized or constrained by an appropriate leader or authority. In natural taxonomy, a domain is the leading level of taxonomic of bodies in the three-domain system of taxonomy composed by Carl Woese. It has changed over the years by changing the domain name of computers.

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

ur answer is e & d

explanation: