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## Homework Statement

Shaving/makeup mirrors typically have one flat and one concave (magnifying) surface. You find that you can project a magnified image of a lightbulb onto the wall of your bathroom if you hold the mirror 2.0 m from the bulb and 3.7 m from the wall.

a) What is the magnification of the image?

b) Is the image erect or inverted?

c) What is the focal length of the mirror?

## Homework Equations

m = - di/do ???

1/di +1/di = 1/f

## The Attempt at a Solution

I'll be honest, I have no clue how to start this problem. Any help would be appreciated