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We calculate the number of kcals of protein (25g) per serving by taking...
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(25)(4)(2)
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25 + 4
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25 + 2
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25 (4)
That's Correct!
It's Wrong!
The correct answer is 25 (4). To calculate the number of kcals of protein per serving, we multiply the amount of protein (25g) by the number of calories per gram of protein (4). This gives us the total number of calories from protein.