The manager of an apartment complex ordered the air conditioners in the apartments to be replaced. The list shows how many years each air conditioner had been in service 11.8, 11.9, 11.9, 12.2, 12.3, 12.9, 13.3, 13.4, 13.6 13.7

What is the median number of years that an air conditioner had been in service?

12.6 years

Step-by-step explanation:

Once you have these written out you kinda just have to look for the middle one and in this that is 12.3 and 12.9 so you add them and then divide by 2. When you add them you get 25.2 and when you divide by 2 you get 12.6. So the median of this data set is 12.6.

i only know the sequence of arithmetic it adds the first is 5+4 then it goes up as it adds to then it is 9+5 then 14+6 then to 20+7 and so on. 5,9,14,20,27,35.

step-by-step explanation:

your answer   is c

step-by-step explanation: