How far (in mm) from the lens must the film in a camera be, if the lens has a 40.0 mm focal length and is being used to photograph a flower 61.5 cm away

An equinox occurs when a. neither end of earth's axis is tilted toward or away from the sun. b. the north end of earth's axis is tilted away from the sun. c. the north end of earth's axis is tilted toward the sun. d. earth's axis is parallel to the sun's rays. select the best answer from the choices provided a b c d