Respuesta :

Andrewdes09876

Answer:

A is the answer.

Step-by-step explanation:

3.2 x 10-9 = 23.

All the other answers are more than 23.

priscilla97853932

Answer:

A

Step-by-step explanation:

Because if you do 3.2*10= 32

then you subtract 9   32-9= 23

And when you multiply the other, it is already bigger that 23.

Please don't report me. Because I am not sure if you are doing exponent or not. Exponent is 10^3, like that.