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Question 5 spring semester final exam math evaluate

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 .

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length