The data in the table represent a proportional relationship. Fill in the blanks in the table below. You may enter your answer as a decimal. cβββ dβββ 15 15βββ 3 3βββ β 30 30βββ A 6 6starsββ B 45 45starsβββ 9 9ββββββ 1 1βββ ββ What is the constant of proportionality, kβ, for converting cβ to dβ?