30 degrees because it's a 30-60-90
9x-7=-7
9x=o
x=0
so the answer....is 0
I think the answer is 0.04...
13 16 15 19 20 15 19 20 14 15 17 18 and that's all i see hopes that helped :)
This might not be correct but....
I’m going to use rounding,
42 x 2 = 84
84 divides by 3 = 28,
Which is near 30......So the number of people in the group is rounding to about 2 people.