a) By looking at the picture, we can tell that the orange weighs 135 grams.
b) Now when we look at the picture, we see they have added an apple. The total weight is 250 grams. 250 grams - 115 grams, so the apple weighs 115 grams.
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
