The standard form of an equation is

In the question, we have the following formula

To get the formula in standard form, we first have to subtract 2y from both sides (since we need to get 2y on the left side)

Finally we subtract 1 from both sides (since we need the number on the right side)

Hence, 4. is the correct answer.
10. This is because 3 evenly goes into 30 without a remaining fraction
If this is a T/F question, then your answer is True .-.