Answer:
or 
Step-by-step explanation:




For sin θ = 0.5, the reference angle is θ = 30 deg.

or 
We can write a proportion for this problem
10,000drops of a liquid is 10 fluid ounces
100 drops of a liquid is x fluid ounces
x=100*10/10000 =1/10 = 0.1 fluid ounces
I think the answer is C. X*4=-12+3