Please help me im lost

Match each graph with the correct equation from the equation bank. not all equations will be usef

Issof claims that the scale factor is 1/2. which statement about his claim is correct

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 .