Thank you guys so much for your help I’m very tired rn so I’m trying to get this done

The correct answer is 21 out of 140 students

Step-by-step explanation:

Hope this helped :3

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square