In order to get your answer, take the number of text messages you send each day (12) and subtract it from the number you and your sister send (26). When you get the answer from subtracting both of these numbers, take the answer from your subtraction and add it to the number of text messages that you send a day (12).
Answer:
Nice to hear that, congrats with practice 7.3
There is a 1:10 chance of the needle landing on 9.
