X is less than or equal to 3
X is less than 9
X is less than -5
X is greater than or equal to 13
Answer:
The answer is choice B: 22.52 units.
Step-by-step explanation:
We use the Pythagoras's theorem which says for a right triangle with sides
and hypotenuse
:

In our case


So we solve for 

Which is choice B.
3x9=27
21/3 = 7
so
7+27x9+5
27x9=243
243+7+5
answer is 255
Your answer to this problem is going to be 1047.1 because, well, it is basic addition.