Raul is playing a trivia game. At the end of the first round, he has 7 points. During the second round, he loses 15 points. Which expressions represent the total amount of points Raul has at the end of the second round? A. 7 - (- 15)
B. 7 + 15
C. 7 + (- 15)
D. - 7+ ( - 15)
E. - 7 - 15
F. 7 - 15

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?