Answer:
I hope this helps!Let me know if it helps
I dont know all of them sorry. But i think
Its d. If its a list of questions lol. But I could be wrong but i did the math 2 times.
The law of cosines states that, if
is the angle between sides b and c,

So, plugging our values, we have

This is equal to

<span>9(2+5m) 9(2+5m)
(18+45m)
9*2
9*65m</span>