Agree or desagree? short question​

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

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 .

Find the percent error of the measurement 4 cm