Sam typed 570 words in 15 minutes. If he continues to type at this rate, how many words will he have typed in 2 hours?
A. 1.900
B. 4,560
C.1,140
D.8,550
there are 8, 15 minute segments in 2 hours. If one 15 minute period is 570 words, you would multiply 570 by 8. the answer you get is 4,560, which is letter B
