Girl what are you talking about
2/5
Since 12 out of 30 marbles were black, you can assume that the percentage of black marbles in the bag is 40% (Ex: 12/30=.4) The probability that the marble you pick is black is equal to the percentage of black marbles in the bag. 40% is equal to 2/5.
I CALCULATED IT AND GOT
C) 4.29
21.6 x 6.2 = 133.92
Cheryl can travel on 133.92 miles
