<em><u>The answer is</u></em>: <u>2.8 ml, they should be administered.</u>
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Explanation:
We pass mg to g, 700 mg = 0.7g by dividing them by 1000.
Applying the rule of three if 0.5 g = 2 ml, where multiplying by 0.7 g x 2 ml = 1.14, and divided by 0.5 g is equal to <u>2.8 ml</u>, they should be administered.
<em><u>The answer is</u></em>: <u>2.8 ml, they should be administered.</u>