that would be considered 'skinny'. i am 13, 5'3 and weigh 135 lbs. it all depends on frame size, muscle and fat, and body structure.
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51 + 57 = 108
3.8
The GCF is 3.
57 cannot go into 15 at all because 57 is a larger number than 15. In division, the divisor (57 in this case) must be smaller than the dividend (15) for the division to be possible. Since 57 is greater than 15, it cannot divide evenly into 15, and the result would be a fraction or decimal.
It is: 17+25+15 = 57 and 57/3 = 19 which is the average