Myra is evaluating the expression –31.7 + 4.5x, when x = 2.1.

–31.7 + 4.5(2.1)

–27.2(2.1)

–57.12

What was Myra’s error?

A Myra should have multiplied -31.7 and 2.1 first.

B Myra should have multiplied 4.5 and 2.1 first.

C Myra should have subtracted -27.2 and 2.1 first.

D Myra should have added -31.7 and 2.1 first.

Here are the 30 best lifetime baseball batting averages of all time, arranged in order from lowest to highest: 0.319, 0.329, 0.330, 0.331, 0.331, 0.333, 0.333, 0.333, 0.334, 0.334, 0.334, 0.336, 0.337, 0.338, 0.338, 0.338, 0.340, 0.340, 0.341, 0.341, 0.342, 0.342, 0.342, 0.344, 0.344, 0.345, 0.346, 0.349, 0.358, 0.366 if you were to build a histogram of these data, which of the following would be the best choice of classes?