Question: Pls help!!! A construction worker repairing a window tosses a tool to his partner across the street. The height of the tool above the ground

Pls help!!!

A construction worker repairing a window tosses a tool to his partner across the street. The height of the tool above the ground is modelled by the quadratic equation H = -5+2 + 20 + + 25, where "H" is height in metres, and "t" is the time in seconds after the toss. a) How high above the ground is the window? b) What was the maximum height the tool reached

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