Evaluate f(2) if f(x) = -2x + 7

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

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 .

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?