_8. A bottle of liquor is labeled 3% by volume of alcohol.How many mL of alcohol are in a 500 mL bottle of this solution?​
A.15 mL
B.18 mL
C.21 mL
D.30mL

_9. kylie and jelianne want to start a perfume business. They started extracting 15mL essential oil and combined it with 60 mL of alcohol. What is the percent by volume of the solute?
A.17 mL
B.20 mL
C.21 mL
D.30 mL

_10. what is the percent by mass if 9 grams of NaCI is dissolved 6in a solution whose total mass is 80g.
A. 15.75%
B. 17.75%
C. 18.75%
D. 20.75%

_11. Find the percent by mass if 9 grams of NaCI is dissolved in a solution whose total mass is 80g.
A. 11.25%
B. 15.50%
C. 27.75%
D. 30%

_12. Which is more concentrated, a solution containing 4 grams of powdered milk in 10 grams of water or a solution containing 20 grams of powdered milk in 90 grams of water?
A. Grams of powdered milk in 10 grams water in more concentrated because it is 40% powdered milk.
B. Grams of powdered milk in 10 grams water in more concentrated because it is 50% powdered milk.
C. Grams of powdered milk in 90 grams water is more concentrated because it is 45% powdered milk.
D. Grams of powdered milk in 90 grams water is more concentrated because it is 50% powdered milk.

Please? need ko po ngayon:((

okay lang po kahit hindi kompleto answer niyo tatanggapin ko po:)
ill be waiting for ya answers=^^=