Who is clinically dead? helga, who exhibits no cortical functioning naomi, who is not breathing and whose heart is not beating john, who is not responsive to pain john, naomi, and helga would all be considered clinically dead?

naomi, who is not breathing and whose heart is not beating

A person is considered clinically dead if their blood circulation and breathing is stopped because those two is needed to sustain live. Notice that the diagnosis need both of them, so only one of them is not enough. Helga and John has no problem in breathing and circulation, so they wont be considered clinically dead.

multiplying and dividing the two decimals and the eqations by the same number of the overalls