clearly I do not know, but I can say that we do need to know the mass bc in the future there will be more and more androids on the rising making human interaction bad.
to find out the equation take the seed and the time. (this to make it look like i answered)
Taking the mass you will be able to find out how many
8.3*4 = 33.2 kg. Hopefully that is correct Since Yi Ting weighs 8.3 and her brother is 4 times heavier you would multiply those two numbers to get the answer.