Each student in Mr. Farmers class took 42 tests this school year. Mr. Farmer has 8 students in his class.
Which pair of expressions shows two ways to determine the total number of tests Mr. Farmer graded this year?
A) 40 * 2 and 40 * 8
B) 42 * 8 and 40 * 8
C) (42 * 8) + (2 * 8) and 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8
D) (40 * 8) + (2 * 8) and 42 + 42 + 42 + 42 + 42 + 42 + 42 + 42
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