A student needs to fill with 9 liters of water. How many 1/3 liters of water will it take to fill the tank?

Write a corresponding real world problem to represent 2x - 125=400

Amuffin recipe, which yields 12 muffins, calls for cup of milk for every 1 cups of flour. the same recipe calls for cup of coconut for every cup of chopped apple. to yield a batch of 30 muffins, how much flour will be needed in the mix?

Ineed i been stuck on this question since yesterday