If container a holds 8 gallons of water and container b holds 12% more than container a, how many gallons of water does container b hold?

Answer: 8.96 gallons of water

To answer this question you need to multiply the container b: container a ratio with the container a volume.

Since container b has more volume than container a, the ratio should be >1. In this case, the ratio is 100%+12% = 112%

Then the volume of container b is = 112% x 8 gallons = 8.96 gallons