Answer:1/193
Step-by-step explanation: you divide 2 into 386 and it will give you the amount of times it fits into 386.
We have that
the first balance indicates--------> 10 g
the second balance indicates--------> 0 g
the third balance indicates--------> 7.5 g
therefore
the <span>mass of the chick is (10+0+7.5)----> 17.5 g
the answer is
17.5 g</span>