Answer:English you don't understand...
Step-by-step explanation:Gives Explanation In Spanish
Answer:
-1.5 + 4.2
Step-by-step explanation:
Since there is no negative sign,the sign would change.
So it will be -1.5+4.2
Maybe try add it then takeaway most of it
Answer:
16
Step-by-step explanation:
The mean of a group of values is calculated as
mean = 
Given 5 numbers with a mean of 12, then
= 12 ( multiply both sides by 5 )
sum = 60
let the number removed be x , then
= 11 ( multiply both sides by 4 )
60 - x = 44 ( subtract 60 from both sides )
- x = - 16 ( multiply both sides by - 1 )
x = 16
The number removed was 16