It is B. Nikita used the wrong measurements when finding the area of the base. Please give a like. I Promise this is correct and if its not you can yell at me and all that! :)
Answer:
A
Step-by-step explanation:
Rationalize the numerator:

This is continuous at
, so we can evaluate the limit directly by substitution:

A rectangular floor covered without overlaps or gaps by 7 identical tiles, each of the length l and with w. If the w=12 ft, what is the total area of the floor?