I think the correct answer is D
Answer:
-4 and 10
Step-by-step explanation:
It is 7 units from 3 not 3 the number itself
He has a total of 7 Boards. he has 3 boards of his own and then you add the 4 additional boards that he has
Rationalize the numerator:

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

Travels by 2 so therefore the answer is B