At a restaurant, trevor decides to tip the server 16% of the bill. if he leaves a $4.00 tip, which proportion could be used to find how much the bill was for?

16% of x = 4  or  0.16x = 4

Step-by-step explanation:

Let the amount of the restaurant bill is $x.

Now we know Trevor leaves 16% of the bill as a tip

Therefore, amount of tip will be 16% of x

this amount is $4.

So equation for this situation will be

16% of x = 4  or  0.16x = 4

what i would say the best answer is a. 40.5