Since the big triangle is an isosceles one, we conclude that the angles of the left triangle are: 32, 90 and 3x-10. Sinche the sum of this angles have to be 180° we have:

Solving for x, we have:

Therefore, x=22.67 and the answer is A.
So what I think you do is that yu have to simplify or divide. Good luck! - from: a 7th grader
Answer:
0.9
m
−
12
Note:
Since there is no y value m can not be determine. Therefore finding the sum here can not be determined so instead you can try simplifying
Answer:
25 students
Step-by-step explanation:
50% of 50 is 25
50/2 = 25