Math Help Please
posted by MATH PLEASE HELP .
A bottle contains 0.5 quart of grape juice. Keisha will use 0.2 of the grape juice to makie fruit punch. How much grape juice sill Keisha use for the fruit? I chose a.)0.3. My mom says it is b.) 0.2 The teacher's edition says it is c.) 0.1.
Can you please explain how to work this problem? Thank you

What part of my explanation don't you understand?
http://www.jiskha.com/display.cgi?id=1268510058