Answer:
D.
Step by step explanation:
First of all we will convert our given time from minutes to hour by dividing 35 by 60.
Let us find speed of dog during walk.
Dividing a number by a fraction is same as multiplying the number by the reciprocal of the fraction.
Therefore, speed of dog is and option D is the correct choice.
The exact circumference is 60ft
The slope of the line will be -7/4. Hope it help!