None of them are parallel but D. is perpendicular. I'm sorry if this doesn't help...
In a histogram, the highest bar is the mode, which means the number the bar represents appears the most.
The answer would be D. Three, because it appears most often.
We have 4(k-6)-(3k+2)=-5 and the answer is k=21
Least: game two
greatest: game one
Even though both games have over 14,000, game two outdoes game one by being least because 505 is smaller than 753.