Answer:
B. 18
Step-by-step explanation:
For the function

we can find the value of the function for all x that are very close to 9 but are less than 9 and for all values of x that are very close to 9 but are greater than 9.
1. For 

2. For 

So, limit exists and is equal to 18.
Since a fraction is a form of division, you do 21/2=10 and 1/2.
Answer:
A. 83
Step-by-step explanation:
I hope this helps :)
The group lose 8.8 pounds per day. For a detailed calculation, please refer to the attachment.
Answer:
(x,y) = (.5x,5y)
Step-by-step explanation: