Greg's home is 1.8 miles from his school.
There is a music store halfway between school and his home. Today, Greg wants to stop at
the store after school. Right now, he is 0.36 miles away from school.
a. How far is the music store from Greg's school?
b. How much farther does Greg need to walk to get to the store?
c. How many miles does he have left to walk home?