Answer:
Option B is correct.
125 days does it take for there to be 15 students in her program.
Step-by-step explanation:
As per the statement:
Candice uses the function:
[tex]f(t) = \sqrt{t+100}[/tex] [1]
where variable t represents the days and f(t) represents the number of studemts.
We have to find how many days does it take for there to be 15 students in her program.
⇒f(t) = 15 students
then substitute in [1] we get;
[tex]15 = \sqrt{t+100}[/tex]
Squaring both sides we have;
[tex]225 = t+100[/tex]
Subtract 100 from both sides we get;
[tex]225-100= t+100-100[/tex]
Simplify:
[tex]125 = t[/tex]
Therefore, 125 days does it take for there to be 15 students in her program.