The answer to this is going to be 9 and 16.
<span>f(x) = ax2+bx+c, is quadratic equation
</span><span>function opening downward if the a<0,
</span><span>kf(x) = -x², a= -1<0
so the answer is </span><span>B.kf(x) </span><span>
</span>
there would be 4 students
5 cookies for each
10 slices of pizza for each
hope this helps
Answer: 72
The way I solved this is by dividing 25 by 1800