Rule #1: All nonzero digits are significant #1-9 are significant
Determine the number of sig figs in each of the examples
below.
6782
26.2
.3491
55

6782 has 4, 26.2 has 3, 0.3491 has 4 and 55 has 2 significant figures .

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? ?