What is pluto's speed at the most distant point in its orbit, where it is 7.30×109km from the sun?

Using Keppler's Law, we can calculate the speed of Pluto since we are given the distance of Pluto from the sun which is 7.30x10^9 km. 

To solve for the orbital velocity, use this formula:

V = √(GM/R)

where R is the radius 
M is the mass of the planet
G is the gravitational force. 

Ibelieve the answer is c

Ibelieve the answer is c also i'm in k12 too