Answer:
the surface area of the decoration is 31.5
Step-by-step explanation:
The mass of the solution is 190 g - 120 g = 70 g. Thus, it's density is 70 g / 50 mL = 1.4 g/mL.
It says decreasing so you have to turn it into a percent (.06%) and then sub tract that from 1. After that you put that into an equation.
Answer:
9. 7/2
10. -6
Step-by-step explanation:
