Mathematics Homework Help

Can you help me understand this Applied Mathematics question?

You are preparing 30 g of an 8% (w/w) Peruvian balsam ointment. Peruvian balsam is a very viscous liquid, with a specific gravity of 1.161, which you will measure with a syringe. How many milliliters of Peruvian balsam will you need to compound this product? Round your final answer to the nearest 0.2 mL.

Calculate the amount of each ingredient, in milliliters, required to make 450 mL of the following solution (all ingredients are liquids). Round each final answer to the nearest milliliter:Witch Hazel4 partsGlycerin3 partsAlcohol USP1 partBoric Acid Solution7 parts

5 mg of triiodothyronine (T3) are contained in every 600 mg of a trituration. Express the concentration of the trituration in ratio strength.