If a/b = 2/5, What is the value of (2a + 3b) / (7a + 5b) ?

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If a/b = 2/5, What is the value of (2a + 3b) / (7a + 5b) ?

A. 8
B. ( 19/35)
C. (19/31)
D. (19/39)

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