The density of a substance is the ratio of its mass to its volume. the formula for density is: d = mass/volume. if the density and the volume of a liquid are known, its mass can be found by a) adding its density to its volume. b) dividing its density by its volume. c) multiplying its volume and density. d) subtracting its density from its volume

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.