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The graph shows the number of paintballs a machine launches, y, in x seconds:




Which expression can be used to calculate the rate per second at which the machine launches the balls? (5 points)






A80/40
B20/4
C4/80
D4/20

The graph shows the number of paintballs a machine launches, y, in x seconds: Which expression can be used to calculate the rate per second at which the machine class=