Eamon has to write a 12 page book report. The shaded portion of the strip diagram below shows the percentage of the book Eamon has completed he shades 25% how many pages has he written so far

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 .