Volume as a function of mass. Estimate the volume when the mass reaches 30.0 g. How will the density at that time compare with the density when a = 0.5?
Graph the following relations between measurements of a growing plant, checking that the points lie on a line. Find the equations in both point-slope and slope-intercept form.

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Age, a Mass, M Volume, V Glucose production, G days) (g img) 0.0 3.4 6.8 10.2 13.6 17.0 (cm) 0.5 1.0 1.5 2.0 2.5 3.0 2.5 4.0 5.5 7.0 8.5 10.0 6.2 7.3 8.4 9.5 10.6