How much is 80% of 40 is greater than 4/5 of 25?

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How much is 80% of 40 is greater than 4/5 of 25?

A. 4
B. 6
C. 9
D. 12

Explanation:
(80/100) * 40 – (4/5) * 25
32 – 20 = 12