Solve the Problem. -The Intensity of a Radio Signal from the Radio Station

Multiple Choice

Solve the problem.
-The intensity of a radio signal from the radio station varies inversely as the square of the distance from the station. Suppose the the intensity is 8000 units at a distance of 2 miles. What will the
Intensity be at a distance of 7 miles? Round your answer to the nearest unit.

A) 679 units
B) 617 units
C) 636 units
D) 653 units