A compound microscope has an objective lens with a focal length of 0.50 cm and an eyepiece

Question:

A compound microscope has an objective lens with a focal length of 0.50 cm and an eyepiece with a focal length of 3.25 cm. The separation distance between the lenses is 22 cm.
(a) What is the total magnification?
(b) Compare (as a percentage) the total magnification with the magnification of the eyepiece alone as a simple magnifying glass.