In the given question it is given that , AC = 105 yd, BC = 60 yd and angle ACB= 69.3 degree.
We have to find the distance of AB, and for that we use law of cosine, which is

Substituting the values of AC, BC and theta, we will get



The concert director can choose the new members by holding try outs to take the the possible candidate’s skills, performance and professionalism into consideration to be a part of the large show. Another way is by voting amongst other people in their school to see who the audience would be excited to see preforming in the show.
Answer:
I believe the answer is B. Hope it helps.