What is 1+1?

help pls

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 .

Give me the equations of two lines that have the same slope but are not parallel.

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.