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Jason Studied 5 Hours for His First History Test and His

Question 186

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Jason studied 5 hours for his first History test and his test score was 85;6 hours for his second History test and scored 90;and 7 hours for his third History test and scored 95.He also studied 5 hours for his first Math test and his test score was 68;6 hours for his second Math test and scored 78;and 7 hours for his third Math test and scored 88.
-The marginal benefit of the last hour of History studied was ________ and the marginal benefit of the last hour of Math studied was _______.


A) 15;13
B) 5;10
C) 90;78
D) 13;15
E) 10: 5

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