34. When light shines on an object, the intensity of that light, I, in units of light intensity, can be expressed as , where d is the distance, in feet, the light source is from the object, and k is a proportionality constant. For one light source shining on an object, d = 12 and I = 10. If d = 6 for the same light source shining on the same object, what is the corresponding value of I ?

G.