Colise has 2 vases of flowers that each hold 10 red and 5 yellow roses. michelle has the same total number of roses but in 3 vases. each vase has 6 red roses. how many yellow roses is in each of michelle's vase?

The answer would be d i think but i’m for sure it is not a and c

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.