Never .. isoscels is unequal. I'm pretty sure
C. −6, is the best option
I don’t know the answer yet, I’ll reply to my comment with it, but merry Christmas to you too!!
A^2+ b^2= c^2
24^2+b^2=25^2
576+b^2=625
Sub 576
b^2= 49 b=7
It’s A letter A hope this helped