Are these three different questions? if so:
1: add 19 to both sides to get a = 3 +19
answer: a = 22
2: multiply both sides by 7 to get y = 10 * 7
answer: y = 70
3: divide both sides by 5 to get g = 100/5
answer: g = 20
hope this helped! good luck :)
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The best and most correct answer among the choices provided by the question is </span><span>A. Between 0.05 and 0.01 </span> .
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Hope my answer would be a great help for you. </span>