Respuesta :

Answer:

21

Step-by-step explanation:

9+11+|-1|

9+11+1

21

Answer: 21

Step-by-step explanation: the absolute value of any number will be positive so the absolute value of -1 is one. After that all you have to do it’s add 9 and 11 which is 20 + 1 which is 21

Hope this helped