alexisturner78 alexisturner78 17-09-2021 Mathematics contestada What is the constant of proportionality between the age of the plant and the average height of the plant shown in the table? Age of Plant Average Height of Plant 1.5 months 9 inches 2 months 12 inches 3.25 months 19.5 inches A. 1 B. 3 C. 6 D. 12