Answer:
I think its option 2
It is most definitely D, The volume of a cone is one-third of the volume of a cylinder.
6 mph
Step-by-step explanation:
Difference in distance
= 15 - 12
= 3 mi
time taken
= 30 mins
= 1/2 hour
Speed
= 3 ÷ 1/2
= 6 mph