There are lots of them I know but I will only give you a few of them.
14/30 56/120
21/45 63/135
28/60 70/150
35/75 77/165
42/90 84/180
49/105 91/195
Answer:
36
Step-by-step explanation:
4 x 9 = 36
36 / 4 = 9
Therefore, 36 is 4 times as much as 9.
1= 2.89
12= 28.56
so, 28.56/2.89= 9.88 so per each container saved by buying oil is 9.88 dollars