Answer:



Explanation:
Given
Decimal Grid = Hundredths



To solve for each:
We have:
For Amber:


For Grace:




This means that Grace shaded 60 of the hundredth models.
Decimal shaded is:



For Marsha:




Multiply this by 100, to get the number of shaded


This means that Marsha shaded 170 of the hundredth models.
Decimal shaded is:

