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

Therefore the second choice is the correct answer.
Answer:
4, because if you chose any one from the 4 green marble the answer is 1 because all are same coloured, you can chose one green or one red or one blue or one yellow
Step-by-step explanation:
.
Answer:
1 - 5i
Step-by-step explanation:
(-2 + 4i) + ( 3 -9i) = -2 + 4i + 3 - 9i
= -2 + 3 + 4i - 9i
= 1 - 5i
50x30=1500 (this is an approximated rounded answer)