Raymond works in a appliance store and gets a 12 percent discount price. the original cost of a video game system is 175$.

Icould really use some with this question.

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 .

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?