Answer:
The mean would be 82
Step-by-step explanation:
To find the mean you add up all the numbers.

Then you divide that be the amount of numbers are given to you.

And that is how you find the mean.
Sorry if it is wrong I'm tired.
Answer:
x=23,y=15
Step-by-step explanation:
take away 8 from 38, divide it by 2, you get 15. add 8 to one of the set of two 15s. you get 23 and 15
Answer:5/5 then 10-7 then 6/2
Step-by-sanation:
Triangular Prism.
Hope this helped :)