Evaluate $12-8x^2$ at x=-2 .

A) 32
B) -20
C) 28
D) 45
E) 50

Which of the following statements about shapes of histograms is true?

A) A histogram is said to be symmetric if,when we draw a vertical line down the center of the histogram,the two sides are identical in shape and size.
B) A negatively skewed histogram is one with a long tail extending to the left.
C) A positively skewed histogram is one with a long tail extending to the right.
D) All of these choices are true.