Can someone plzzz solve all the problems for me and show the work plz im failling this class help

If 90° < θ < 180° and cotθ = -1/3, then cscθ =

Select all the correct answers. natalie buys a new car. in the first month, the odometer on the car records 800 miles. from past experience, she expects to drive 900 miles per monthselect all the functions that can be used to find the number of miles, f(n), recorded on the odometer after n months. of(n) = 800n + 100f(n) = 9001 - 100f(n) = 900n + 800(1) = 800; }(n) = f(n - 1) + 900, for n > 2f(1) = 800; 1(n) = f(n − 1) + 100, for n > 2(1) = 900; }(n) = f(n - 1) + 800, for n > 2

F(x) = (x^2 + 3x − 4) and g (x) = (x+4) find f/g and state the domain.