just some algebra questions that i don't know the answers to
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Answer:
The ball reaches it's max height of 8 feet at 0.5 seconds.
The ball was at 7 feet at 0.25 seconds and 0.75 seconds.
The tennis ball was above 4 feet for about 1 second.
Between 0.5 seconds and 0.75 seconds the ball decended 1 foot.