the probability of getting red is 0.5 since 2 of the 4 faces are red. The probability for getting a king is 1/13 since there are 13 different card values.
1/3 of 30 is 10 and 1/6 of 30 is 5. so she spends $10 on clothes and $5 on music in total 15. 30-15= 15. She has $15 left. 15÷3=5. so she gives her each sister $5.