The answer is 112 im pretty sure!
100, because, x^2 - 20x + 100 = ( x - 10 )^2;
Use the equation
A= 2(wl +hl +hw)
Where
w is width
h is height
l is length
Hello there.
<span>There were 196 students that participated in a clean-up event at a nearby lake. this is one fourth of the entire student population. write and solve an equation to find the number of students at this school.
Answer: x is the number of students in the school.
</span>

= 196.
<span>196 x 4 = 784.
Therefore the number of students in this school is
784.
Hope This Helps You!Good Luck Studying ^-^</span>