can you please assit me with these two questions

8. The function f(x) has the form f(x)=2kx, where k is a constant. If f(12)=8, then what is the value of k ? If necessary, enter your answer as a decimal rounded to the nearest hundredth. You may use SymPy. Hint: If you use a solving function, add the argument domain = S. Reals to restrict the answer to real solutions only. 9. The population P of a city t years after 2000 is modeled by the function P(t)=135120e0.325t. Use the model to predict the population of the city in the year 2020. Round your answer to the nearest thousand people. Enter a number only (no units). You may use SymPy. Hint if you use a solving function, add the argument domain = S. Reals to restrict the answer to real solutions only