Amy is walking. D(t) , given below, is her distance in kilometers from Glen City after t hours of walking. D(t) = 155-5t. Complete the following statements.

Let D be the inverse function of D. Take 1 to be the output of the function D. That is, D(1) = 6 and D(6) = ?. Which statement best describes: D(6) The ratio of the amount of time she has walked (in hours) to her distance from Glen City (in kilometers) .

The amount of time she has walked (in hours) when she is x kilometers from Glen City:
The reciprocal of her distance from Glen City (in kilometers) after walking x hours.
Her distance from Glen City (in kilometers) after she has traveled ? hour.
D(6) = 0
D(s) = 0