If he puts 3 times as many balls into red than green, and each bag has the same number of balls, this means he has 3 times more red bags then green bags. Overall, we can say that the 56 balls are being put into 4 groups of bags (3 red, 1 green). This leaves 56/4 balls in each group. Since there is only one green group, we can say 56/4 = 14 balls go into green bags
To find the answer, you divide 5.50 by 5 to get the price of one slice of pizza. We get that one slice is $1.10. 2 slices would be $2.20. 10 slices would be $11. Half a slice would be $0.55. Hope this helps!
