100p for an answer what is the first step in solving the equation 3.5n+6.4=42.5? (a)add 6.4 to each side of the equation. (b) subtract 6.4 from each side of the equation. (c)multiply each side of the equation by 3.5. (d)divide each side of the equation by 6.4.

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 .