Which represents the empirical formula for x4y8?

Usually, in writing the empirical formula of a substance, the carbon atom is placed first followed by the hydrogen, oxygen and other atoms. If you are given X4Y8, the empirical formula is C4H8, possibly an alkane molecule having the formula CnH2n with n having the number of atoms.

b is the correct

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?