Answer:
3xy+6x+3y+6
Step-by-step explanation:
This it simplified not ANSWERED
The mean of the data is given

The variance of the data is given

B.
The cost for x children and y adults to go to the movies if adult tickets are $11 and child tickets are $6.
Example 3 children and 2 adults ( 6(3) + 11(2) )