Is there where 100 people & 9 died how many would be left?

91

Explanation:

Since you have 100 people and 9 died you subtract so it's = 91

as many times as you want

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides