Andy is driving to visit his grandmother. He drove 171 miles in 3 hours. What was his average rate of travel for the trip?
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Is the orthocenter of a triangle on the inside ?

Someone . me. compound probability

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .