Ben is taking a typing class, and the following line graph represents the number of words per minute he was able to type each week. According to the graph, how many more words per minute could Ben type in week four than in week 2? DOK 2
During week 2, he could type 15 words per minute, at his fourth week, he could type 30. So 30-15=15. He could type 15 words faster on week 4 than he could at week 2.
