The price of a new motorcycle is $9000, but the value of the motorcycle drops by 13% each year. the function v(t) = 9000 • 0.87t models this situation for v dollars and t years. what is a realistic domain for this situation?
a. t ≤ 9000
b. t ≥ 0.87
c. t ≥ 0
d. all real numbers