Please help fill in the values and solve the problem the way my professor laid out

PROBLEM 1: The thin glass shell shown in the figure has a spherical shape with a radius of curvature of 12.0 cm, and both of its surfaces can act as mirrors. A seed 3.30 mm high is placed 15.0 cm from the center of the mirror along the optic axis, as shown in the figure. (a) Calculate the location and height of the image of this seed. (b) Suppose now that the shell is reversed. Find the location and height of the seed's image. (MAKE SURE YOU DRAW A RAY DIAGRAM) (a) R.= 12.0-cm 3.30 mmT hseed= 3.30 - mm K - 15.0 um do := 15.0-cm himage May hated 2 1 R. do d. d, := R = 10.000 cm -d. Magi d. - -0.7 hinage :-Mag . hosed =-2.200 mm (b) R. = 12.0-cm d . 2-4.3 cm -di Man d. =0.3 homage May -Rec.=0.943 mm