1/4 of the pizza was left after dinner
48 ÷ 3 1/5 is 48/1 ÷ 3 1/5 which equals 15 because you cut the pipe into 3 1/5 pieces.
12% of Gilbert's contribution is 600
0.12x = 600
x = 600/0.12
x = 5000 <==
The 4 pack , 1 pack =0.51
The 9 pack, 1 pack = 0.52
The 4 pack is better because it's cheaper
