Need steps and explanation please and thank you.

More lenses. Object O stands on the central axis of a thin symmetric lens. For this situation (see the table below, all distances are in centimeters), find (a) the lens type, converging or diverging, (b) the focal distance f. (c) the image distance i. It also refers to whether (d) the image is real or virtual, (e) inverted or noninverted from O, and (f) on the same side of the lens as O or on the opposite side. (a) (b) (c) (d) (e) (f) Type P i m R/V I/NI Side +13 0.56 (a) (b) Number Units (c) Number Units (d) (e) (f)