Suppose a sample of 1421 Americans over 36 is drawn. Of these people, 981 don't smoke. Using the data, estimate the proportion of Americans over 36 who smoke. Enter your answer as a fraction or a decimal number rounded to three decimal places.

The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

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 .