Square root of 27/4 rounded to the nearest tenth

Evaluate 4 a for a = 5 2/3 . express your answer in simplest form.

Can someone answer it, and plot it, for 20 points and brainliest answer? p. s. they're the same ! : )

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 .