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The multiplication property of zero states that the product of any number and 0 is 0. what must be true about either a or b to make ab=0

Correct answer brainliest asap an d 99 pointsss what are relative frequencies to the nearest hundredth of the columns of two way table column a 102, 18 colunm b 34, 14 answers choices 0.15 0.25 0.29 0.44 0.56 0.71 0.75 0.85

Find the solution of this system of equation -7x+y=-20 9x-3y=36