Jill is thinking of a number four more than three times the number is 13 what is the number is it 1.8 2.33 or four which one is the correct answer?

Let's break down the information given:

Let's assume the number Jill is thinking of is 'x'.

According to the given information, four more than three times the number is equal to 13.

Therefore, the equation can be written as: 3x + 4 = 13.

Subtracting 4 from both sides of the equation, you get 3x = 9.

Dividing both sides of the equation by 3, you get x = 3.

Therefore, the correct answer is 3, not 1.8, 2.33, or four.