Since there isn't much detail provided in this question, I will still try my best to answer for you!
Look closely at the image that is provided for you. If a circle has a mass of 3 grams and a square has a mass of 2 grams, pay closely attention to the pattern and the pattern sequence.
I know that I'm not much help, but it's a bit hard to answer when there is no context provided with the image. I hope you understand! I tried my best to help. -w-"