There is no triangle below. Try to edit this problem.
(a) is the first one. 48 I would say 8 mins
(b) is the second one. 10 I would say is 96
Answer:
30 degrees
Step-by-step explanation:
Let Angle ABC be 2x, Angle EBC be 5x

Answer:
We need to know the other marbles in the bag and how many there are of each.