IF you GUYS help ME with my WORK and this is a lot of work but you will get 50 POINTS

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

How do i get my dad to stop making me gargle his pickle i want my mom to gargle my pickle not my dads

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?