What does h(0) = 300 mean?

​The altitude of a helicopter is described by a certain function ℎ, where ℎ(?)is the altitude in feet of the helicopter ? minutes after 7:00 a.m. Which best describes the meaning of the statement ℎ(0)=300?

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h(t) is the altitude, in feet, of the helicopter t minutes after 7:00 a.m.

h(0) = 300 means the helicopter would be
300 feet high at 7:00 a.m.  {0 minutes after 7:00 a.m.}

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