For this case we have the following function:

By definition, the average rate of change is given by:

We evaluate the function for the given values:
For x = 7:

For x = 14:

Then, replacing values we have:
Answer:
the average rate of change from x = 7 to x = 14 is:
a. 23.22
Perimeter is 28 and area is 32
Answer:
cant rlly read the question
Step-by-step explanation:
Answer:
Under couch
Step-by-step explanation:
63 = 9k
divide by 9 on each side to get k by itself
k = 7