Answer:

Step-by-step explanation:
The given ratio is 
9 is the common factor of 18 and 27
divide numerator and denominator by 9

hence
is proportion with 
you need to know the mass of the jewelry box before you can know the volume but i can help you multiply th 15 and the 10 to get the mass most likely then divided what you have from 15 x 10 by the depth and you have your answer just be sure to round it off!
So first you need to do the discount
(95)(0.9) = 85.5
then add the 4.5% sales tax:
(85.5)(1.045) = $89.35
Answer:
The percentage is 1/2 * 2/5 = 1/5 = 20%.
I would say j but i can’t get my mind on which one