i am really confused -10a +9= - 131 and by the way does any one have padlet will mark brainlest for the CORRECT answer

-10a+9=-131

Explanation:

okay so first things first you subtract 9 from both sides that would give you

-10a=-140

next, you divide -10a on both sides and that would give you your answers to your equation

a=14

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.