Which cause of viral gastroenteritis commonly causes projectile vomiting?
hepatitisvirus
astroviruses
rotavirus
noroviruses

Noroviruses

Explanation:

The term "gastroenteritis" refers to irritation and inflammation of the digestive tract, including the stomach and intestines. The most common causes are viral agents, bacteria, parasites and food poisoning, and the most common complaints are diarrhea, abdominal pain, cramps, nausea and vomiting. Noroviruses are the leading cause of adult gastroenteritis in North America and are responsible for projectile vomiting in infected individuals.

the correct answer is - ability to find a mate

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.

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