If a concave mirror with a radius of curvature of 0.93 m has an object placed at 0.37 m in front of it, what is the mirror's focal length? Round your answer to 3 decimal places.
Crazy question.
The focal length of a concave mirror is ALWAYS half the radius of curvature. It is a property of the mirror and not where the object is placed.
Divide 0.93 m by two and do the rounding.
Perhaps the instructor really meant to ask for the image location, but does not understand what "focal length" means.