In steps 1, 2, and 3, you will use a punnett square to predict

the actual results of a cross.

the number of offspring produced from a cross.

the possible results of a cross.

how genes are expressed.

if you look up in the top right corner you'll see your current profile picture, click than click "view profile" you'll be able to change it there.

i think its both a and b

to figure the total magnification of an image that you are viewing through the microscope is really quite simple. to get the total magnification take the power of the objective (4x, 10x, 40x) and multiply by the power of the eyepiece, (usually 10x)