Before cam broke his right arm he was able to text 9 words per minute on his phone after he broke his arm he had to use his left arm for a while and could only text six words per minute what's the difference between the number of words he could text in 5 minutes before and after he broke his arm

He textes less because hes not useed to texting with that arm so it lot harder

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.

Polar coordinates is 8,9