Mr. Kido purchased 5 footballs for his physical education class. If he paid $425, how much was each football?

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Which composition of similarity transformations maps polygon abcd to polygon a'b'c'd'? a dilation with a scale factor less than 1 and then a reflection a dilation with a scale factor less than 1 and then a translation a dilation with a scale factor greater than 1 and then a reflection a dilation with a scale factor greater than 1 and then a translation

Which best explains why this triangle is or is not a right triangle ?