9/12 is the answer to your question
5,7 and 8 are right angles, and 6 is an acute angle this is because of u look at 9 and 10 you can see a little box looking thing under the h and if u do that to all of them 5, 7 and 8 can fit the little box but 6 you can’t because it is an acute angle. Hope this helped!
The coefficient of the third term in this expression is +2 from the term (+2x).
A) 25 N / 10 KG = A, A=2.5 M/S^2
b) 25 N / 5 M/S^2 = M, M = 5 KG
