2 years ago

11. Robert photographs a lush forest of sea fans after diving 40 feet in the Reefs of

1 answer:

8 0

Sea level is 0

robert dives 40 ft.....-40
he then rises 23 ft.....-40 + 23 = -17
he then dives 19 ft to meet Sam....-17 - 19 = -36
together they rise 31 ft...-36 + 31 = - 5

they are 5 ft below sea level <==

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