Respuesta :

Answer:

Number 10:

   median= 5.5

   mean= 7

   mode= 5 and 6

   range= 12

Number 11:

   missing age is 14

Number 12:

   18 should be the last missing number

Step-by-step explanation:

agasca

Answer:15

Step-by-step explanation:It would be 15 because it says in the sentence the mean of the age of 6 friends in 15 years, so it would mean that 15 is the answer