Students arrive at the dance in parties of 2. 4 students leave the dance early. If y is the number of students left at the dance, and x is the number of groups that have arrived, then y = 2x - 4. Complete the table for the equation y= 2x - 4.

Carmen and matt are conducting different chemistry experiments in school. in both experiments, each student starts with an initial amount of water in a flask. they combine two chemicals which react to produce more water. carmen's experiment starts with 30 milliliters of water in a flask, and the water increases in volume by 8.5 milliliters per second. matt's experiment starts with 10 milliliters of water and increases in volume by 28% each second.