The last one, since one depends on the other
Answer: 0.42 mg
Step-by-step explanation:
Given : A 3mL unit dose of levalbuterol HCl contains 0.63mg of active ingredient.
Then , the amount of active ingredient in 1 ml dose of levalbuterol HCl = 

Hence, the amount of active ingredient in 2 ml dose of levalbuterol HCl will be :-

Hence, the amount of active ingredient in 2 ml dose of levalbuterol HCl =0.42 mg
7.62 a^2+b^2=c^2 have a great day
(4.81 x 10^3) + (7.913 x 10^5)
(4810)+(791300) = 796,110 OR (79611 x 10)

1) 4.1 × 4.1 × 4.1 = 68.921. (volume of cube)
2) 12 ÷ 68.921 = 0.17
Answer : 0.17g/cm^3