Answer:
I believe it is A
Step-by-step explanation:
just add the two numbers together.
B
Step-by-step explanation
Take 11 & square it, then take 15 & do the same, then add.
After that find the square root.
[tex]11^{2}[/tex]+[tex]15^{2}[/tex]=346
[tex]\sqrt{346}[/tex] = 18.6
