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is it AA, SSS, SAs?

What is the missing constant term in the perfect square that starts with x^2 -20x

What is the shape of the height and weight distribution

It takes jonas 7 1/4 minutes to run the mile. it takes mario 8 5/12 to run the mile. how much faster is jonas than mario? 5/6 minute 1 1/3 minutes 1 1/6 minutes 1 1/2 minutesi will give points and brainlest