7. A coin is tossed 15 times. The head appears 7 times. What is the probability of landing on tails if the coin is tossed 45 times? A. 7/45
B. 8/45
C.21/45
D.24/45

8. A jar has 2 red marbles, 4 blue marbles, 1 yellow marble, and 3 green marble. What is the probability of pulling a red marble? A. 20%
B. 30%
C. 40%
D. 50%​