The best and most correct answer among the choices provided by your question is the third choice or letter C "<span>Multiplication Property of Equality"</span>
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The value of a is 70° and b is 20°
<span>The probability that all three children will be girls is 1/3 because 3 are about to be born</span>
9=m-4
9+4=m
13=m
9=13-4
9=9
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