Mathematics, 22.11.2019 04:31 perfect32

Ahot air balloon is estimated at an elevation of 4500 feet after being in the air for 30 minutes. at 45 minutes, the balloon is now at 3300 feet. how long does it take for the balloon to reach the ground?

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Ahot air balloon is estimated at an elevation of 4500 feet after being in the air for 30 minutes. at...