Answer:
13
Step-by-step explanation:
The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
Answer:
f(3)=122
Step-by-step explanation:
Answer:
90
Step-by-step explanation:
Its 630/7
Answer:
18. Commutative property of addition
19. Distributive property
20. Associative property of addition
Step-by-step explanation: