SOMEONE PLEASE HELP ME ASAP THIS IS ALMOST DUE ILL MARK BRAINLIEST!!!!

Answer:
30 ft
Step-by-step explanation:
Hi!
So according to the Pythagorean theorem, a^2 + b^2 = c^2
Ok, so let's just plug those numbers in:
18^2 + 24 ^ 2 = c^2
324 + 576 = c^2
900 = c^2
[tex]\sqrt{900}[/tex] = c
[tex]\sqrt{900}[/tex] = 30
x = 30
You could also use Pythagorean triples, and there are Pythagorean triples for this which is 3:4:5; and since it's a ratio, we can write it as 3x:4x:5x. Then, according to a and b, x would equal 6, so then we plug in x:
3(6):4(6):5(6)
and you get:
18:24:30
Let me know if you have any questions.