In the diagram, polygon ABCD is reflected across EF to make polygon A'B'C'D'. Which statement must be true?
A FA 1 AD
B. BB' 1 DD'
C. HB = HB'
D. AB = BB'

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 .

What is the interquartile range of this day at set?

If (-3, y) lies on the graph of y = 3^x, then y =