ANSWER
6.5 calories per minute.
EXPLANATION
To find the calories Shelley burned per minute, divide the total calories burned by the total minutes ran.
Calories burned for a minute

This will give us,

Phil served 2/8 of an apple pie because in order to have a common denominator, you need to multiply 1/4 by 2/2.
Phil served 2 more pieces of blueberry than apple pie because 1/2(4/4) = 4/8, and 4/8 - 2/8 = 2/8.
P-5=3s-15 because Pete is 20 and Sam is 10. 20-5= 15 and 3(10)-15 also equals 15. The answer is C.
The length of the trail is 98.5 KM, all you need to do is divide the total distance by the number of times she went on it.