Alexa broke a cell sample into 1212 batches, each weighing 1.2\times 10^{-9}1.2×10 −9 grams. How much did the original sample weigh? Use scientific notation to express your answer.

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning