Answer:
0.000625 fl oz
Explanation:
We assume the dose is supposed to be proportional to weight.
dose/(0.75 lb) = (0.0027 floz)/(9 lb)
Multiply by 0.75 lb:
dose = (0.0027 floz)(0.75/9) = 0.000625 floz
The kittens should get 0.000625 fluid ounces of the medication.