The side length 51 is the hypotenuse.
24*24+45*45=2601
The square root of 2601 is 51.
Please note that the hypotenuse is most likely the longest side.

As far as I can tell, that is as far as the expression can be simplified :)
Answer:
Ok so here are the simple rules of doing it (very easy) cause I’m not doing it all so . when multiplying a power with The same base keep the base but add the exponents. Dividing, keep the base (if their the same if not then its already simplified same with multiplication) but SUBTRACT the exponents. Also keep the parenthesis if it’s a negative number base.
I’ll do a few.
11) a^10. 11b) 5^4
12) (-2)^2.
13) 10^2. 13b) s^6
14) -4s^5(t^6) <- [Im not sure of this one)
15) x^3(y^3)
3/4 as a fraction to 9/12
The correct step to simplify the given equation is:
1/2b=1 + <span>2
</span><span>1/2b=3
</span>b = 2(3)
b = 6
Therefore, the correct answer among the choices presented is option A. <span>The student incorrectly applied the multiplication property of equality before the addition property of equality.</span>