For this case we can define the following variable:
x: unknown number
We write the equation that models the problem:

From here, we clear the value of x.
We have then:

Answer:
Completing the sentence we have:
0.04 is 1/10 of 0.40
Answer:
your answer will be 1 out of 20
i got 20 because
u add 10,3,2, and 5
Step-by-step explanation:
Answer:
A) But if anyone thinks this they should go back to preschool
Step-by-step explanation:
On any other value of x you would take the numerators and denominators and multiply them across:

But, this literally does not make since considering the fact that you cannot divide any value by zero. Try it, it won't work. If we plug these into a trusty dusty calculator, we get this:

0*DOMAINERROR= You can't do it.
There are other reasons why you can't divide by zero, I would suggest looking them up on YT and learning about them.
I would answer A, but the person who wrote this question just wasn't focusing when they wrote the question.