Answer:
2
Step-by-step explanation:
Because the people were randomly assigned to one of the two groups, there is a randomness to both groups making them the same. The group that doesn't get the cream is a control group so any differences observed between the control and the group being tested would be due to the cream.
See the answer here is overspending. In order to discuss this you must repeat
Answer: -7/11
Step-by-step explanation:
Final result :: (2x + 3y) • (2x - 3y)