Witch one is it?

I'm confused

Option 2

Step-by-step explanation:

Option 2 features 2 columns and 5 rows, which is representative of the question 0.2 x 0.5. The other options do not model the correct values expressed in the question.

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!