Before I start, please mark me! I need it to level up! :3 Anyway,
A.) There are 4. Jeff makes it 2 miles
B.)
Distance: 1/2 1 1 1/2 2 4
Time: 1/4 1/2 3/4 1 2
C.) First Blank on the diagram would be 1/3. The second Blank on the diagram would be 2.
D.)
Distance: 1/3 2/3 1 2 4
Time: 1/6 1/3 1/2 1 2
If you have questions, please ask! Please do mark me!! :3