I don't know this. Sorry. Good luck
Given:
The limit problem is:

To find:
The limit of the function by using direct substitution.
Solution:
We have,

Applying limit, we get




Therefore, the correct option is D.
The solution of the given equation is (3,6). The correct option is B.(3,6)
<h3>Given equations,</h3>

<h3>How to solve the equations?</h3>
putting the value of y from equation (1) in equation (2) , we get


substitute the value of x=3 in equation (1) we get,

Hence, the solution of given equation is (3,6).
So, the correct option is B.
For more details about the system of equations, follow the link:
brainly.com/question/12895249
Answer: the answer is 7
Step-by-step explanation: the lowest number is 3 and the biggest one is 10 so you substract 10-3 and you get 7