Mass of flask and stopper: 32.276g mass of flask, stopper, and water: 57.425g (h2o=25 degrees c) mass of flask, stopper, and unknown liquid: 57.235g a. what is the mass of water that fills the flask? b. what is the density of water to 4 significant figures at 25 degrees c? c. what is the volume of the flask? d. what is the density of the liquid?

i believe it is 40–40–20%

explanation:

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation: