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To prove that def ~ gfh by the sss similarity theorem using the information provided in the diagram, it would be enough additional information to know that

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a.about 4 b.about 8 c.about 40 d.about 21

Simplify this expression. 8x 16(x + y)