Choose the property of addition that the statement illustrates.
a + (b + c) = (a + b) + c

Somone me i want to know what 18 hours out of 24 hours in a fraction

Acontainer full of water weighs 15.5 lbs. when ¼ of the water is poured out, the container now weighs 12 ½ lbs. how much does the container weigh when empty?

Ethan purchased a container of sports drink that contains 300 calories. the label says that 80% of the calories are from carbohydrates. how many calories are from carbohydrates?