There is a total of 10 marbles, of which 5 marbles are red.

Therefore the second choice is the correct answer.
Answer:
1) 130°
2) 130°
Step-by-step explanation:
Assuming SR, TU, and PQ are parallel, they would both be 130. (180-50)
Answer:
Tan (M) = m/p
Step-by-step explanation:
Tan (M) = Oppo. / Adj.
Tan (M) = m/p