This is middle school work woah
X^2+15^2=25^2
X^2+225=625
Isolate X
X^2=400
Take the square root on both sides
X=positive and negative 20 but in this case the negative is thrown out because you can't have a negative side
Answer: 20
I think A which is 4in but not sure
160+100+180+60=500
180/500=0.36=36%
50x36%=18
That's your answer lovely~
