HELP ASAP FOR 25 POINTS

Which of the following is NOT TRUE?

Will give brainliest summations with algebraic expressions image shown

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

Written as a simplified polynomial in standard form, what is the result when (2x+8)^2(2x+8) 2 is subtracted from 8x^2-38x 2 −3?