The eyepiece of a refracting telescope has a focal length of 9.00 cm . The distance between objective and eyepiece is 1.70 m , and the final image is…

The eyepiece of a refracting telescope has a focal length of 9.00 cm . The distance between objective and eyepiece is 1.70 m , and the final image is at infinity.
What is the angular magnification of the telescope?